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What are the upper limits of the CAB file format?

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Question

What are the upper limits of the CAB file format?

Answer

The only compressed file type supported natively by Windows Installer is the Cabinet (CAB) format.

  1. Multi-part CABs can get the total size of a set of files past 2GB, possibly to 64K * 2GB, but no one file can exceed 2GB.
  2. Maximum size of all files in one folder (uncompressed) 2GB
  3. Maximum size of all files in one folder (compressed) 2GB
  4. Maximum size of a CAB file (compressed) 2GB
  5. Maximum number of files in a single CAB 64K

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  • Mike, Microsoft Dev

[Author: Robert Flaming]

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