How do I return a Hardware ID instead of the Name?

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C#3.0

C#

hardware

unmanaged

Hi,
I have been working with some code that was posted here by another user. It's been most helpful, however I need to tweek it slightly and am not sure on how to do it!.

The code is here:

Hardware Helper Library for C#[^]

I was wondering if anyone can shed any light on how to use the SPDRP_HARDWAREID instead of the name?. I have checked the MS SDK, but unfortunately I'm unable to figure out how to do it.

Basically I need to disable then enable only COM port 5 on an XP box, but as there are multiple COM ports all with the same name (SPDRP_DEVICEDESC) "Communication Port" I can't use the Device Name to disable a single COM port. At the moment the code disables ALL COM ports which is no good.

Thanks in advance,

Dan O.