MULTIKIT COMPRESS
From Just Solve the File Format Problem
MULTIKIT COMPRESS is a file compression utility included with MULTIKIT. MULTIKIT is a DOS library and toolkit, intended for multimedia software developers. It was developed by TSC-Software.
The compressed file format seems to be PKWARE DCL Implode, with a small header.
Disambiguation
Not to be confused with TSComp.
Identification
Bytes 00 06
appear at offset 4.
The file ends with one of byte patterns that DCL Implode data can end with. Refer to PKWARE DCL Implode#Identification.
The 4-byte little-endian integer at the start of the file, plus 4, equals the file size.