TSComp
TSComp is the informal name of a compressed archive format used by some versions of the InstallShield installation software by The Stirling Group. It is also supported by a DOS utility named The Stirling Compressor. It uses PKWARE DCL Implode compression.
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Identifiers
For single-file archives, often the last letter of the filename extension is changed to "$". Sometimes an exclamation mark is used instead of the dollar sign, which appears to be the case when an archive with $ as the last name character already exists. For multi-file archives, the most common extensions seem to be .lib and .cmp. Many archives of this type have no suffix but $ as last character of file name. A few contain only a single file instead of several files.
Identification
Files begin with bytes: 65 5D 13 8C 08 01.
At offset 8 the filename style byte is stored.
The value 1 means without wildcard.
This is typically the case for the single variant.
The value 2 means with wildcard.
This is the case for the other variant.
Software
- The Stirling Compressor v1.3.21
- untsc A command line extractor with source in Golang.
- Deark can list and extract the contents of archives via tscomp module.
