* SZDD files, which use LZSS compression
* KWAJ files, which use LZSS, LZSS+Huffman or deflate compression
* .HLP (MS Help) files, which use LZSS compression
* .CAB (MS Cabinet) files, which use deflate, LZX or Quantum compression
* .CHM (HTML Help) files, which use LZX compression
* .LIT (MS EBook) files, which use LZX compression and DES encryption
* .LZX (Exchange Offline Addressbook) files, which use LZX compression
To determine the capabilities of the library, and the binary compatibility version of any particular compressor or decompressor, use the mspack_version() function. The UNIX library interface version is defined as the highest-versioned library component.