@CRC32

@CRC32[filename] : Returns the CRC32 value (using the same algorithm as PKZIP or WINZIP) of the file specified by filename, or –1 if the file does not exist or cannot be opened.

See also: @SHA256, @SHA384, @SHA512, and @MD5..

Examples:

echo %@crc32["C:\My Files\Myprog.exe"]

echo %@crc32["%comspec"]