TTCOMP

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File Format
Name TTCOMP
Ontology

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.

Identification

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.

Software

Sample files

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