CD

CD - Compress-Decompress Utility using the Microsoft Compression API

CD uses the Microsoft Compression API to compress or decompress data using one of the four supported compression algorithms: XPRESS, XPRESS with Huffman encoding, MSZIP or LZMS.

The files compressed by CD using those compression algorithms also store a signature DWORD value as the header at the start of the file. This is so that the appropriate compression algorithm can be used for the decompression.

CD also makes use of the Microsoft Compression API to store bitmap resources as LZMS compressed data. There are two ways in which CD uses that compressed bitmap data:

• In the about box, by uncompressing the bitmap data before creating the bitmap in memory. The LZMS compressed bitmap data is stored as static hex bytes in the CD128x128x4.bmp.asm file.

• Adding LZMS compressed bitmap files (*.lzms) as RC_DATA resources which are compiled into CD.exe. These resources are loaded into memory, and then uncompressed before creating the bitmaps in memory.

CD also allows an optional output of compressed data bytes as a masm .asm file with 'db' data defines, similar to the masm32 sdk utility bin2dbex.

Note: the minimum version of windows to use for the Microsoft Compression API and thus to use the CD - Compress-Decompress Utility is Windows 8

Download

The latest x86 and x64 release can be downloaded via the releases section of this Github repository.

Resources

For further information about the Microsoft Compression API, please refer to the following links:

• Microsoft Compression Portal
• Using The Microsoft Compression API
• Compress Function
• Decompress Function