'C:\Program' is not recognized as an internal or external command, operable program or batch file.
I expect that the problem here is that you've stuck gzip.exe in a path that contains a space (namely, the space between "Program" and "Files"). Efforts are often made to cater for that type of OS/user bug .... buggered if I know why :-) For mine, the correct thing to do is to simply not put *anything* in a location that contains white space.
Cheers, Rob
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