I use Comodo personally, have had no issues yet :)

Just sit and step through some code all day, occasionally hitting F10 to step over a line, if anyone asks what you are doing, say you are Debugging, everybody will leave you alone :-D

Hah legacy Access applications seem to be everywhere, my last job was eerily similar, I feel your pain! Good luck!

Looking forward to this Mohammad, thanks!

In our place we call it the circle of life.