.exe file will not run when i copy it another location

Question

I have a project in a clearcase vob at the moment and I would like to make the exe available for functional testing - however, when i copy the exe from the original location it will not run! What am I doing wrong here? I did the same process at the start and everything worked fine but now my code has expanded this problem has arisen...

Any help on this? Its is probably something simple I am doing wrong - new to c#.net environment!

Thanks!