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2 serial ports and parallel port show up in Win7/2008R2 Guests after updating to 3.2

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Hi,

I've updated to 3.2 and since then have 1 parallel port in the device manager with no problems and 2 serial ports which can't start (Code 10) in all KVM Windows 7/2008R2 guests. (I have no other guest OSes)

I tried to find out what these are, as I don't have any parallel or serial port on the host's mainboard, but didn't find any hint.
I also tried to delete them but they are autodiscovered again after deletion.
Looked up the vm.conf of the machines but there are no entries pointing to these devices.

Could someone tell me what they are (for)?
Also I would appreciate a hint on how to get them working properly, if they are needed - or if not, how to disable them on the host side, so that windows doesn't recognize them.

Thank you in advance!
Harry

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