"Add Hardware" can't extract *.sys files from *.cab files

[Cheryl]

When I use the "Add Hardware" wizard, it can't find *.sys
files (e.g., usbscan.sys) even when I try to point
directly at the containing *.cab file; I need to manually
extract the *.sys file and manually arbitrate between
different versions to extract the latest one (e.g., which
one to use? drivers.cab vs. sp1.cab?), and THEN point to
the extracted *.sys file. Any ideas? I had a funky unzip
program installed once upon a time that accidentally took
over my cab files so explorer / search couldn't even look
inside them, but I've since uninstalled the program and I
can now search into / extract from *.cab files. However,
I still cannot automatically extract the necessary *.sys
files from them or automatically arbitrate between *.cab
files. Please help! Thank you!

 

[Pavel A.]

The unzip program probably not related.
You have problem with the stock of INF files or some system services
(such of crypto service) or some registry settings.

--PA

 

[Cheryl]

That doesn't give me much to go on...do I have any hope of
fixing this without starting over from scratch? Otherwise
I can just live with it (annoying, but workable). Thanks!

 

[Pavel A.]

Hmm. maybe install SP2 before dumping it all...