Encrypt a file, a group of files, or Folders and sub-folders, with PC-Encrypt using any of the following three methods:

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1 PC-ENCRYPT USER GUIDE 1/13 Register Now for Key-Exchange A free service for secure password exchange - HERE QUESTIONS? info@pc-encrypt.com Overview Encrypt Files or Folders Decrypt File The Password Book Key Exchange View/Edit Program Options Frequently Asked Questions How to Register Appendix A (Multi-register Internet) OVERVIEW: Note: PC-ENCRYPT V10.2 is compatible with all lower versions. However, versions 9.x and below will not decrypt files encrypted by V10.2 Users can upgrade to V10.2 for free by downloading and installing V10.2, which will automatically overwrite earlier versions, and will leave any previous registration information intact. Download V10.2 HERE PC-Encrypt Overview Click HERE for an online demo, or HERE for the online Feature Guide PC-Encrypt provides simple, strong, file and folder security for Windows Vista/XP/2000/NT /ME/98/95, without the need for any adapters, plug-ins, or accessory software. The free version of PC-Encrypt never expires, and will decrypt all strengths, but restricts the encrypt strength to passwords of 7 characters (56 bits). Purchase in North America enables exceptionally strong passwords up to 56 characters (448 bits), and 16 characters (128 bits) Internationally. Installation of PC-Encrypt results in the desktop icon appearing, plus an entry in the "Start" menu as well as the "Start/Programs" menu. You and the intended recipient(s) must share a secret password, which can be exchanged via telephone etc, or can be generated and securely exchanged via our free Key-Exchange service. To secure files or folders, start the PC-Encrypt application or employ other methods described below. Select the password either from the associated Password Book by clicking "Password Book", or manually type in your chosen password. The recipient does not require PC-Encrypt if you employ the "Create one-way file" option in step 2. Alternatively, it is usually more convenient for the recipient to download the PC-Encrypt software - free download at Various convenience features are included as described below, including the Password Book, which can be shared with the companion message "A-Lock" security software - free download HERE ENCRYPT FILES OR FOLDERS Encrypt a file, a group of files, or Folders and sub-folders, with PC-Encrypt using any of the following three methods:

2 PC-ENCRYPT USER GUIDE 2/13 Start PC-Encrypt by Double-clicking the desktop icon, or go to the Start button in your Windows desktop screen and select PC-Encrypt or Drag the files to the PC-Encrypt Desktop icon using Windows Explorer or My Computer or Highlight a file, or a group of files, using Windows Explorer or My Computer, then right click on the highlighted filename(s) and select Encrypt/Decrypt with PC-Encrypt from menu. This will open PC-Encrypt with the selected file(s) listed in the Select Items to Encrypt wizard in the Select Files area. NOTE: this method will encrypt each file -- as a single file -- if you wish to encrypt ALL files into a SINGLE encrypted file, please do the following: highlight each original file that you wish to include by holding down the keys "Ctrl" + "left-mouse" -- then, while holding down the left-mouse button, drag all files to the Windows task bar, typically at the bottom of your sreen - hold this momentarily until Windows then automatically displays the desktop, showing the PC-ENCRYPT desktop icon - then drag the files onto the PC-ENCRYPT desktop icon -- and then observe that PC-ENCRYPT starts, and shows all the selected files showing in the first screen. Alternatively, you can drag the PC-ENCRYPT desktop icon to the "Quick Launch" section of the Windows task bar, where it will be always visible - then drag the files to be encrypted onto this icon. Erase Options: Place a checkmark beside the items for erasure Note that there are 3 types of default erase methods possible by going to the main menu "Options" selection and setting the default type. Additionally, when the specific "Erase" function is selected in the main menu, you are further prompted to select the specific erase method for that specific erase task. Erase can also be automatically invoked during the Encrypt process, and in this instance the default method set using the "Options" feature is employed. The box to the left of each filename selected is unchecked by default. If you check the box, the original file will be deleted automatically during the encrypt cycle, if you confirm when the additional prompt is presented to you. This option is useful if others have access to your computer and the file is sensitive. The additional checkbox for "All Items" further simplifies this step if you wish all original files selected for encryption to be deleted after encryption is completed. Encrypting Folders You can encrypt the entire contents of a Folder, including sub-folders and files, by clicking the Select Folder button, and if desired, also checking Include sub-folders. This will create a single encrypted file containing all the files in the selected Folder(s). The default location for the encrypted folder file is the folder it is derived from. The default name is the name of the file for a single file, and the folder name, if

3 PC-ENCRYPT USER GUIDE 3/13 multiple files are being encrypted. Choose another name and location if the default choice is not suitable. Create a One Way file To send an encrypted file to a person who does not have PC-Encrypt, use this option to create a self-extracting or one way file. This makes the encrypted file into an executable file that can be opened by just double-clicking on the filename. All the recipient needs is the password to decrypt the contents. This option adds an additional 70KB to the encrypted file size due to the overhead of including the decryption and decompression code in the package. Select Location of Encrypted File Normally the encrypted file is saved in the same Folder as the original. If you want the encrypted file to be saved in a different Folder then click Change and select a Folder. Password Definition Enter a password of up to 7 characters (for the unregistered version), and up to 56 characters for the registered version in North America, or 16 characters Internationally. Select a password from the password book Users can select a password from the Password Book by clicking the Password Book button, then selecting a password by its associated name or Click Select Default Password and the message will automatically be encrypted with the "Default Password". This feature allows you to designate one password in the Password Book as the "Default Password". You can give this password to friends and associates for them to enter into their Password Books. You can then encrypt messages to these people by clicking Select Default Password in the Password Definition screen. Creating a Default Password To create a Default Password click "View/Edit Password Book," then select an entry from the list password list and click "Make Default On/Off." Clicking again will turn the default off. Some Files Cannot be Encrypted Some files types such as Windows "dat" files cannot be encrypted, since Windows will not allow them to be opened. Additionally, some files may have names that do not comply with Windows naming conventions, such as having foreign language charaters, etc. In these instances PC-ENCRYPT will identify these and will indicate that these specific files were skipped, as recorded in the file named "PC-Encrypt.log", stored by default in C:\Program Files\PC-Encrypt Security.

4 PC-ENCRYPT USER GUIDE 4/13 AN EASY WAY TO ENCRYPT ATTACHMENTS From within your application, click the file attachment option Select the file you want to encrypt and right click on the filename Select "Encrypt/Decrypt with PC-Encrypt" in the pop-up menu When you have encrypted the file click "OK" to return to "Attach File" window Highlight the newly-created encrypted file (look for the.pce extension) Double-click the encrypted file name and it will be 'attached' to your message DECRYPT FILE You can decrypt files in three ways. Drag the encrypted file ( pce extension) over the desktop icon. Open PC-Encrypt then click the "Decrypt a File button. Using Windows Explorer or My Computer, find the encrypted file, select the file then right-click and choose Encrypt/Decrypt with PC-Encrypt. Click Next and follow the wizards. If you are not sure what Folder the encrypted file is in then click Find Encrypted Files for Me. PC-Encrypt will then search your entire hard drive(s) for any files with the.pce extension and display them so you may select the one you wish to decrypt. Click on the filename then click Select to place the filename in the File to be Encrypted area. Then click Next The Extract Decrypted File to this Folder message appears with the Windows default folder name displayed. If you want the file extracted to a different Folder click Change and select the Folder. Click Next PC-Encrypt will automatically find the Password if it is in the active Password Book. Otherwise you will be requested to type in the correct password. Then click Next The next wizard shows the file(s) that have been decrypted. If you wish to see the file immediately then click on the filename then click on View File. Otherwise click Finish. Note: For decryption, only one encrypted file can be acted upon at a time. Even though the password is limited to 56 bits for encryption in the free version you can decrypt files with passwords up to 448 bits, if the correct password has been entered into the Password Book. THE PASSWORD BOOK Store names and associated passwords in the "Password Book", then you don't have to remember passwords -- you just click on the person's name. To prevent snooping all Password Book entries are stored in encrypted format. You can prevent unauthorized access to the Password Book by locking it with a password. To

5 PC-ENCRYPT USER GUIDE 5/13 do this, click the PC-Encrypt icon, select "view/edit Program Options", select "set/change Password for PC-Encrypt". If this is the first time you have used this feature leave the "Current Password" field blank since there isn't a current password. The password you choose should be a short word or character sequences that cannot be easily guessed by others. Access to the "Password Book" will then only be allowed with the correct password. You can remove password protection by simply specifying the current password and leaving all other fields blank. You can create any number of Password Books (see Advanced Options") and the instructions that follow apply to each one. Multiple Password Books are very useful where more than one person uses the same computer. A group can employ a common Password Book located on a common network. Users can choose this common Password Book by selecting "View/Edit Program Options", then the Password Book tab, then "Change" in the "Location" section, and choose the appropriate Password Book location/name. This enables a central administrator to manage the Password Book for all appropriate users. Adding Entries to the Password Book From PC-Encrypt's main menu, select View/Edit Password Book. To add a new entry, click the "New" button and fill in the fields. Note that you can also include one or more recipient addresses, which will be automatically invoked if you select the option, "Mail File", on the final PC-Encrypt screen when encrypting files/folders. If you regularly send encrypted data to a fixed mailing list, this is a convenient feature - just enter the addresses of recipients, each separated by a 'comma'. If you then encrypt with the associated password, and invoke the "Mail File" feature, all addresses associated with this password will automatically be included to receive the message with the encrypted file. {Alternatively, the encrypted file can be attached to an message composed using your standard package.} When you click OK, the new entry will be saved and will appear in the list. Editing Entries in the Password Book You can edit an entry by selecting it and clicking the "Edit/View..." button. Deleting Entries in the Password Book To delete an entry, simply select it and click the "Delete" button. You'll be asked to confirm your decision. Specifying a Default Password To make an entry the default password, simply highlight it in the list and click the "Make Default On/Off" button. You should see a happy face beside the item in the list. To remove the default property, just click the button again. Please note that there can only be one default password/entry at any one time. You must have an entry specified as the default before you can use the "Encrypt with Default Password" feature. See the topic Easy Encryption with Encrypt with Default Password for more information. A NOTE ABOUT PASSWORDS The unregistered version limits the password length to 7 characters (56 bits) for

6 PC-ENCRYPT USER GUIDE 6/13 encryption but will accept up to 56 characters (448 bits) for decryption. Registered versions of PC-Encrypt can encrypt with a password/passphrase up to 56 characters (448 bits) for USA or Canadian users, and 16 characters (128 bits) for International. The password that you use to encrypt the message must also be used to decrypt the message. It should be easy to remember but hard to guess. A good password is not your birthday, the year you were born or the year anyone close to you was born, your maiden name, your middle name, or any word in the dictionary. Avoid passwords with repeating characters. It is best to use a combination of letters and numbers with upper and lower case (for example 2W7uQ). To be secure a password should be made up of random characters. Assuming we use alpha (upper and lower cases) and numeric characters there are 62 available characters. Key-Exchange is a system that creates random passwords on demand and delivers them securely to other A-Lock or PC-Encrypt users anywhere in the world. Alternatively, you can provide the chosen password, and it will be securely delivered to other users. It is remarkably easy to use and contains several very important features. Key-Exchange service is provided free of charge to all A-Lock and PC-Encrypt users. Some of Key-Exchange's special features are: No need for you to try and think up hard to guess passwords, it generates them for you The passwords it generates are random, the most secure kind of password Generated passwords are a super strong 448 bits long (56 characters) Passwords are delivered in an encrypted for maximum security Passwords are automatically entered into your Password Book You can specify if a password is to be shared with one person or a group You control exactly who you share a password with so you know that only that person can send or receive a message encrypted with that password Registering with Key-Exchange You must obtain an Transfer Key before you can use Key-Exchange. The Transfer Key is used by the Key-Exchange system to encrypt passwords delivered by . Click HERE to register. The first time you use Key-Exchange you will be asked for your name, country of residence, address, the product you are using (A-Lock or PC-Encrypt) and a 4 character "Personal Code". The "Personal code" is required to positively identify you if you need to replace your Exchange Key in the future. Your private "Transfer Key" will be displayed on a secure web page. You don t have to copy it down or type it anywhere, just select Copy Key-Exchange Key in the PC-Encrypt menu and it will be copied into your Password Book automatically. Once the Exchange Key is in your Password Book you use Key-Exchange to deliver secure passwords with other PC-Encrypt users. Conducting a Key-Exchange

7 PC-ENCRYPT USER GUIDE 7/13 Click on the "Go to Key Exchange Site" link on the PC-Encrypt menu. This will take you to the web page where you list the name(s) and address(s) of the people you want to exchange secure messages with. A unique, password will be generated by Key-Exchange and delivered to each person listed (including yourself). Alternatively, you can provide a chosen password, and Key-Exchange will deliver it securely to the addresses that you enter in the distribution list. Click HERE to visit the "Conduct A Key-Exchange" page If you request a Key Exchange but have not yet picked up your Transfer Key you will be linked to the Registration page where you can register and pick up the Transfer Key as described in Registering for Key-Exchange. Any names on your list that are not registered with Key-Exchange will be ed a form letter asking them to register with Key-Exchange to receive a password that is waiting to be delivered to them. Defining a Group If you enter more than one address for recipients it is defined by Key-Exchange as a group exchange and you will be prompted for a "group name" for the new password. VIEW/EDIT PROGRAM OPTIONS Set/Change Password for PC-Encrypt You can password protect access to PC-Encrypt. The default setting is for no password. If you are using this option for the first time leave Current Password blank and enter a password or phrase up to 56 characters long in the New Password box. Repeat the password for verification in the Retype New Password box. To change the password, enter the current password in the Current Password box then enter a new password as described above. To delete remove password protection enter the current password in the Current Password box and leave the other entries blank. If you turn on the "Require password before exposing passwords" option, the same password you specify here is required before any passwords are exposed. Require a Password before exposing passwords By default, passwords in PC-Encrypt are hidden. That is, instead of seeing the actual characters that make up the password, you instead only see a special character, such as an asterisk (*) in place of each character of the password. In the File Encryption and Password Book Entry Properties screens, you have the ability to "un-hide" the passwords by simply unchecking the appropriate box. To prevent others from "un-hiding" your passwords, check this box. You'll be asked to specify a password before the password is exposed or "un-hidden." The password you must specify is the same password you use to gain access to the PC-Encrypt program. What to do with Temporary Files during Encryption This option sets the default "erase" level to one of the following 3 modes:

8 PC-ENCRYPT USER GUIDE 8/13 Delete - Fast, but insecure - same as standard Windows delete - no overwrite. Deleted information can possibly be recovered by using specialized software. Overwrite and Delete - Good speed, and a reasonable level of erase, but erased information can possibly be recovered by using very specialized software, with significant time involved in trying to recover. Secure Erase - Slow, but very thorough overwrite and erase. Extremely difficult, if not impossible, to recover erased information using very specialized software, with extreme time and effort. Compression Level This allows you to specify how PC-Encrypt compresses files. Selecting "Min." will result in no compression, while selecting "Max." will provide the maximum degree of compression available (the Max. setting will provide slightly greater compression than Default and will require more time to compress and decompress files). Request password each time it's accessed Clicking this option will cause PC-Encrypt to ask for your Password Book password (if one is defined) each time the Password Book is accessed. This is the recommended setting. Request password only when first accessed Clicking this option caused PC-Encrypt to ask for your Password Book password ONLY THE FIRST TIME IT'S ACCESSED. This option is not recommended, since if you leave your desk, anyone can go in and view your Password Book, provided you have opened it at least once. Set/Change Password Click this button to define a password that will be used to protect access to the Password Book. To remove password protection, simply leave the "New" and "Retype New" password fields blank. For optimum security, it is strongly recommended that you specify a password for the Password Book. If you do not, anyone with a copy of A-Lock or PC-Encrypt will be able to read the contents of your Password Book. Location This specifies the present location of the active Password Book. By default it is located in the same folder as the rest of the PC-Encrypt files. However, you can move the Password Book to another location on your hard drive or to a floppy disk if you wish (that way you can keep it with you for total security or for use on another computer that has PC-Encrypt). If you change you must tell PC-Encrypt where to find the Password Book. Click the Change button and select the new location and click Select. Creating a new Password Book Click the "Change..." button and type a name for the new Password Book in the File Name field then click Select. A new Password Book will be created for you. Backup/Restore PC-Encrypt provides an easy way for you to backup your Password Book(s). You must first select the Password Book you want to Backup. If you want to backup the Password Book displayed in the "Location" field then move on to the next step. If you want to backup another Password book then follow the instructions above for "Change Password Book"

9 PC-ENCRYPT USER GUIDE 9/13 Click "Backup" and you presented with a listing of the disk drives on your computer. Select a drive and folder (you can select folders by clicking the + in front of each Drive name), click on it then click "OK". Many people chose to backup to their floppy drive so they can take their Password Book with them and use it on another computer (as long as the other computer has a registered PC-Encrypt installed). The selected Password Book will be copied to the specified location. To Restore the backup files click "Select Password Book to be Restored". All the Password Books in the last drive and folder specified for "Backup" will be displayed. Click on the Password Book name you want to restore Then click "Select". The specified Password Book will be copied into the folder it was backed up from. If the Password Book you wish to restore is not in the folder displayed chose the drive and folder containing the backup copy you want to restore. tab PC-Encrypt has a built-in send function. When you have encrypted a file you can send it immediately with this feature. It must be configured before it can be used and the simple instructions for this are outlined below. Alternatively you may use your standard package and attach encrypted files as described above. The name typed in this field will be seen in the "From" field by the recipient of any you send out. For example, if you type John Q. Public in this field, the recipient of any mail you send with PC-Encrypt will see that the mail is from John Q. Public. Type the internet address you'd like to be used as the return address on any you send out with PC-Encrypt. Normally you'd just type your own address in this field. SMTP Mail Server This field is required before PC-Encrypt will be able send any . Your internet service provider (ISP) can provide you with this information. Ask for the address of their SMTP mail server (it is usually mail.[server name] Message Log File This area controls whether or not a record is kept of all mail you send out with PC-Encrypt. Don't add mail to log file Check this box to prevent the recording of any mail you send out with PC-Encrypt. Checking this box will save disk space. View Log File click this button to view the contents of the log file. Clear Log File Click this button to empty the log file. FREQUENTLY ASKED QUESTIONS (FAQ's)

10 PC-ENCRYPT USER GUIDE 10/13 How secure is PC-Encrypt? PC-Encrypt uses the tested and proven Blowfish encryption algorithm developed by the world famous cryptographer, Bruce Schneier. Blowfish has been challenged by many cryptographers but has yet to be cracked. What is the maximum size of the encryption key used by PC-Encrypt? The maximum key size for residents of The USA and Canada is 448 bits. The maximum key size for users outside the USA and Canada is 128 bits. If my computer crashes or if I get a new computer do I have to register again? Yes, the replacement PC-Encrypt program must be re-registered before all its features are activated. There is no charge for re-registration, you simply go to /_site/pce/reregister.mhtml and fill in the Client Number your received with your ed receipt of purchase, plus the Product code of the new PC-Encrypt. You will receive a new registration package be . You are allowed up to 4 re-registrations. How does the one-way option work? There may be times when you wish to send an encrypted message to someone who does not have PC-Encrypt. The one-way allows you to do just that. You encrypt a file, select the one-way option and the encrypted file is made into a self-extracting file. The recipient just clicks on the encrypted filename, enters the password (you must provide this to the recipient separately)) and the file is decrypted. The only downside is the file size is increased by about 70kb, although this may be partially or completely offset by PC-Encrypt s built-in compression feature. Can an entire Folder, and sub-folders, by encrypted with PC-Encrypt? Yes, an entire folder, and sub-folders, can be encrypted with PC-Encrypt to create one file bearing the Folder name and the.pce extension. This can be very handy for 2 reasons, it compresses all the files in the Folder(s) so they can be archived in less space and it protects all the files in the Folder(s) from prying eyes. Version 10.2 encrypts the files individually when I right-click on the file names With Version 10.2, to encrypt several files altogether into one single encrypted file, place all the files of interest into a file folder. Then right-click on the folder and proceed to encrypt it. To encrypt the files of interest individually, right-click on the file of interest and proceed to encrypt. How does Erase Files differ from the normal delete function? When you delete a file in Windows you are not actually deleting the file you are simply modifying the files entry in the directory so it can no longer be accessed by normal means. The file remains intact on your hard drive. There are a number of undelete programs that can recover the file, even though you thought it was gone forever. The Erase Files function overwrites the entire file with null values and it repeats this process a number of times to ensure that all copies of the file possibly located in Windows temp files etc. are similarly erased. Files erased with the Erase File function cannot be recovered. How do I encrypt/decrypt files and folders located at a remote location?

11 PC-ENCRYPT USER GUIDE 11/13 To encrypt/decrypt files and folders located remote from your computer, first use the Windows Explorer "Map Network Drive" function to set up the linkage. On your desktop, double-click the "My Computer" icon, then select "Tools", then "Map Network Drive". Find the remote "folder" of interest and set this as a Windows "drive". Somtimes I see a "Microsoft Visual C++ Runtime Error" message This error message is sometimes displayed if you are using a web-based package with Internet Explorer, and you select the "Open" option during the download process. It is related to Internet Explorer. Either select the "Save" option, then find the saved file and open it, or select another browser. During the registration process I received a 'Runtime Error" message If this error is displayed during the registration process, save the registration file that came with the registration , then double-click this saved registration file. My Win 2000 ( or XP ) skips zip files Microsoft sets a default value for handling zip files, which differs from traditional handling the zip files are shown as a folder in Windows Explorer. To revert back to traditional handling, copy the following text regsvr32 /u %windir%\system32\zipfldr.dll Then go to Start, select Run and paste the text just copied in the Run window. which should display as follows Then click OK on the Run screen Next you should see the following response message My Vista skips "zip" files By default, Windows Vista and Windows XP treats ZIP files like folders. You can revert back to standard handling so that the zip "file" is treated like a standard "file"; however this requires modifying the Vista registry, which always requires caution. One method that is simple to employ can be found at

12 PC-ENCRYPT USER GUIDE 12/13 How do I uninstall the PC-Encrypt software? Well, we wish you would not do this -- but if you feel that you must: Click the Windows "start" button, usually located bottom left-hand corner of your computer, then click "Programs", and find the folder "PC-Encrypt Security". Move your mouse over this folder, and the uninstaller will be displayed. Click the Uninstall menu item, which will remove the PC-Encrypt software. HOW TO REGISTER Select Register Program from the PC-Encrypt main menu. You will be presented with a message box with the "Product Code" displayed. Click "Copy Product Code" to save the Product Code in the Windows clipboard, then click the blue lettered Click Here to Go Register PC-Encrypt (if this is already grayed out then PC-Encrypt is already registered). This will open your web browser at the PC-Encrypt Register page. Single License Purchase If you are registering one copy of PC-Encrypt click the radio button (circle) next Single License Purchase. Place the cursor inside the Product Code input box, right click your mouse then select a "Paste" to enter the Product Code you saved in the Windows clipboard with Copy Product Code button. Now click "Purchase/Register" to go to the secure web page to complete your purchase. Multiple License Purchase If you wish to register more than one copy of PC-Encrypt then click the radio button (circle) next to Multiple License Purchase. Then enter the number of PC-Encrypt's you want to register in the Qty box. Each copy of PC-Encrypt you want to register under the Multiple License Purchase option must be individually registered and identified as pre-paid by the presence of a valid Access Code. An account name and Access Code number is assigned to each Multiple License Purchase Registration Via Web Browser If you choose this option you will receive an ed receipt for your purchase and two web addresses, one for registering each license you have purchased and one for the Access Codes required to register each copy. See Appendix A for a sample of this message. Credit information You can use AMEX, Discover, MasterCard or Visa for payment when you register. A secure dedicated server connected directly to the banking system handles all credit transactions. Once the transaction is completed you will get an online receipt that you should print for your records. More information is included for Web Registration in Appendix A APPENDIX A - Internet Option - Sample of multiple purchase message

13 PC-ENCRYPT USER GUIDE 13/13 Thank-you for purchasing 00 registrations for PC-Encrypt. Please keep this for reference. You have elected the Internet registration option. You will need the Product Code plus an Access Code for each copy of PC-Encrypt you register. You have been assigned one Access Code for each registration you purchased. Click on the following link for a list of the Access Codes assigned to this purchase NOTE: Each Access code can only be used once. We advise you to keep the above web address confidential to avoid unauthorized use of the Access Codes. HOW TO REGISTER (sample only) Click the Start button in Windows and click on PC-Encrypt in the pop-up menu. Select Register Program from the Menu selections Click the Copy Product Code button. Click on this link Place the cursor in the Product Code input box then right click and select 'paste' to enter the Product Code saved in Step 3. Enter an Access Code and your address then click Register Now You will receive an attachment by return that contains the registration code of the PC-Encrypt with the matching Product Code. Decrypt the attachment with that PC-Encrypt and it will be registered automatically. You should send these instructions and an Access Code to everyone who you authorize to register PC-Encrypt. We suggest you provide the Access Code by telephone or other secure means. We have no way of knowing if a request for registration is from an authorized person or not so the security of this code is important. RE-REGISTRATIONS Because the PC-Encrypt registration is computer specific, we have made provisions for a preset number of free re-registrations in case of computer replacement, reformats or crashes. You need a Client Number for all re-registrations plus the Product Code of the replacement product. Your Client Number is included in your initial purchase recipt sent to you by . Please keep the Client Number for future reference. The re-registration address is