looking to decompile a visual basic exe

Looking to decompile a visual basic exe i made some years ago for kwickfit wheel tracking i made it in visual basic and i never backed the source code up ive made other programs for the latest wheel trackers but there not compatible for the wheel trackers but i need to update some bugs what customers are having im getting so many complaints and i need to do some miner bug updates what will be quick instead of making the whole program whole again

thank you for you time in reading this

Bill.

You can try to see some computer generated source code with .Net Reflector but i dont know any way to see original source code.