Try copying the cab file onto your hard drive and doing it from there.

However, from what you've said in the other thread, it sounds as though that file has never decompressed properly since you've had the CD.

It could be you've got a bad disk.

If it won't copy (Windows error about being unable to read the file), or winzip can't unzip it once it's on your hard drive, you need to contact Microsoft and ask them to replace the CD. They'll usually do this for you if you return the damaged version to them after hearing from them.