CompressionMethod Parameter (Expand-Gzip Cmdlet)
The method with which the archive was compressed.
Expand-Gzip -CompressionMethod string
Possible values for decompression are: Deflate, LZCCompress.
By default, the component uses the Deflate compression method described in rfc 1952. When set to LZC compress method, the component will use a variation of the method described by the LZW (Lempel-Ziv-Welch) algorithm that is compatible with Unix's compress utility.