Is Superlab 4.5 compatible for windows 11 ? If not, what could be potential glithches ?
It will likely work but we have no idea what glitches or timing issues you will run into. We have no plans to test SuperLab 4.5 or SuperLab 5 as they are deprecated products (version 4.5 was discontinued 9 years ago!).
I highly recommend you consider buying SuperLab 6. It is continuously updated and can open all SuperLab 4.x and 5.x experiments.