Custom Build Steps not executing in VS2005

[chrysalisx]

I'm currently working with visual studio 2005 express. I have everything compiling just fine, and it creates the output dlls in the correct target folder, however the custom build step copying them from there to my Steamapps/SourceMods/MyMod/bin directory simply doesn't run. It doesn't even print a failure message, it just doesn't bother to run.

I've fixed up the custom build rules to include the .pdb files like the various setup tutorials say, and it seemed to solve the problem temporarily, however every time I start up, It goes back to it's non-executing behavior until I make some kind of change to the rule.

Has anyone run across this kind of issue? It's not work-stopping by any means, but it's bloody inconvenient, and I'd appreciate any help I can get.