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Microsoft KB Archive/37780

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Knowledge Base

IBM Token Ring Network and the Serial Mouse

PSS ID Number: 37780

Article Last Modified on 9/24/2003

The information in this article applies to:

  • Microsoft Mouse

This article was previously published under Q37780


The Microsoft Serial Mouse may not work properly with the IBM Token Ring network adapter because the adapter may take control of both COM1 and COM2. For example, one customer tried the serial mouse on the mouse port of a PS/2 model 55x that was configured as a workstation in an IBM Token Ring, but the mouse failed to work properly.

Customers should contact IBM as to whether or not the COM ports can be made available.

One possible workaround is to use a bus mouse instead of a serial mouse.

NOTE: For a serial mouse, you must keep the interrupt level used by the COM port as 4 or 3, or else the mouse won't work.

The product included here is manufactured by a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding this product's performance or reliability.

Additional query words: 8.00 8.10 8.20 3rdparty ps 2

Keywords: 2 8.00 ps KB37780
Technology: kbMouseSearch kbMSHardwareSearch