Model: MIDI FIX
Operating System: Windows 98SE (Note: might work with other versions of this os.)
This is a Windows MIDI utility to clean out the Windows Operating system of previously installed MIDI devices for PCI and USB interfaces.
Windows has a limit to the number of device drivers installed, once that number has been exceeded new installations will result in the device MIDI port not showing up in the Device Manager.
There is a text file included that includes a few simple steps on how to use this file.