Windows detects USB GPS as Serial Ballpoint - please suggest permanent modification to prevent any serial mouse detection

Tom2010serial-GPS-ballpoint-****436 asked on
Using Win7 ultimate on a variety of machines, when I plug in a 'USB' GPS the system does two things: it installs the support for the USB-Serial device, and then it (using 'serenum' apparently) begins mistaking the GPS for a serial mouse, and 'detects' and installs the microsoft serial ballpoint.  I have editted /windows/inf/msmouse.inf, adding a line after line 28 (guessing at the syntax, copying from the alpha excludes)
ExcludeFromSelect.NTx86 = *PNP0F0C,*PNP0F08,*PNP0F09*PNP0F01,*PNP0F0A,*PNP0F1E

This does *NOT* do the trick.  The GPS is consistently being enumerated by the system as a "serial ballpoint mouse".

This has been reported by numerous people in numerous forums on numerous configurations over multiple windows versions.

When is Microsoft going to fix this?  This is not a GPS issue.  This is not a serial device issue.  This is not a USB issue.  This is, pure and simple, a Microsoft issue.

Removing the 'upperdrivers' entry for serenum might do the trick, but the registry keys are not writeable now in Win7.  Sweet.  Thanks, Microsoft.
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Rawleigh replied on

I had the same problem, cursor sometimes jumps all over the screen  

 Here's the fix:  Open Regedit. Navigate to
      HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SerMouse, and change the value "Start" from 3 to 4.  Reboot.

I found this on a website for a program to help with gps . Worked like a charm for me.

There is a reg file that will do the editing for you also.

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