Making sense of Access Violation

[Tydr Schnubbis]

I'm making a multithreaded gui app which gives me an Access Violation 
exception.  I'm not sure how to figure out where it originates from.  If 
I use the msvc 6 debugger, I get a crash address.  But msvc doesn't show 
me where in the code that address is, so I'm still stuck.

Is there a tool like gnu's addr2line that will give me a file and line 
number?  I couldn't make addr2line work with the exe that dmd creates.