Changes in this version

Changes in Version 4.5:

• Added the extended file cipher functions AES128_FileExt, AES192_FileExt, AES256_FileExt, TDEA_FileExt, DES_FileExt, BLF_FileExt, and their associated methods in .NET with the CipherFileOption parameter. The extended options (1) enable the IV to be embedded in the ciphertext file and (2) allow the padding to be left in place when decrypting. See Extensions to block cipher functions for files for more details.
• Upgraded the API_ErrorCode function and General.ErrorCode method so they now return an error code after calling most functions. This is useful to find the error when the .NET methods return an empty string.
• Removed all functions deprecated since version 4.0 and earlier to reduce bloat. These were functions deprecated in or before the year 2007. All have better equivalents in the latest version.