cabsdk / cabarc help???

[mkx]

Trying to boot winxp from external hard drive and this is the setup instruction that I am stuck at =

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Unpacking IN_ files

Use the Cab SDK (from the command line) for extracting the contents of the .IN_ files. Each of them contains exactly one .inf file. If you are unsure how to use the Cab SDK, here is an example command line: "cabarc x USBSTOR.IN_" . You should end up with three new files in the folder, called:

* usb.inf
* usbport.inf
* usbstor.inf
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Now I downloaded Cab SDK but CABARC won't open, maybe it doesn't work in windows Vista? Am I supposed to open it? Or am I supposed to do something in command prompt?

[mkx]

if i type cabarc in command prompt it says 'cabarc' is not recognized as an internal or external command, operable program or batch file.

[mkx]

If someone can do me a huge favor and let me email them the 3 .in_ files and email me back the .inf files, i would greatly appreciate it