Martin Hinner's
mscompress
Microsoft's "compress.exe/expand.exe" compatible (de)compressor 
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This package contains two programs:
- msexpand, which decompress files compressed by Microsoft compress.exe utility   (e.g. Win 3.x installation files)
 -  mscompress, which compress files using LZ77 compression algorithm. Output files can be decompressed using Microsoft expand.exe or msexpand(1).
 
To install it on your Unix box, configure the package ("./configure") and
then type "make all test install". 
Other MS-decompressors
See also