TTComp archive is a compressed file format. It was apparently used by some software installation utilities. It uses PKWARE DCL Implode compression.
Though it may be called an "archive" format, it appears to store nothing more than a stream of compressed data.
The first byte of a TTComp file indicates the type of compression:
0x00: binary compression
0x01: ASCII compression
The second byte of a TTComp file specifies the size of the dictionary as follows:
0x04: 1024 bytes
0x05: 2048 bytes
0x06: 4096 bytes
Most TTComp files begin with bytes
0x00 0x06 indicating binary compression and a 4K dictionary.
- Universal Dial UP Modem Driver CD → SOFTWARE/BITWARE/.../*.??$