Known problems and limitations:The program can decrypt protected files only if encryption keys (at least, some of them) are still exist in the system and have not been tampered. Only Basic (but not Dynamic) NTFS partitions are supported. For files encrypted on Windows 2000, if Account Database Key (SYSKEY) is stored on floppy disk, or if Password Startup option has been set, you should know/have one of the following in order to be able to decrypt the files: startup password or startup floppy disk the password of user who encrypted the files the password of Recovery Agent (if one is available) If password of the user (who encrypted the files) has been changed after encryption, you may need to enter the old password into the program. If files were encrypted under Windows XP (with or without SP1) or Windows Server 2003, the password of user who encrypted the files (or Recovery Agent) is needed for decryption. The program has been tested only on files encrypted on U.S. versions of Windows; if any other (international) version has been used, correct work is not guaranteed.