The difference between PS/2 and UART (normal com port) is not just an adaptor. PS/2 uses a different signaling, so in order for your adaptor to work, the mouse must be capable of that signaling. Some mice only supports UART signaling, and those cannot work through a PS/2 connector regardless of drivers and adapters.
<i><b>Engineering is the fine art of making what you want from things you can get</b></i>
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