We have a guy who left the company and decided to access a whole heap of MSDN licenses before he left. We checked with Microsoft if there's anything we can do and they say no. I have a list of what he took on his last day for reference only.

My question is, is there any way we can find out what software he could also have downloaded from MSDN? My boss has asked to me to see if it's possible to find out. So far I've been unable to do that, so if it's possible then how?