DLL does not throw Access violation when i run without debugging

I'm loading a third party dll into my application and when i try to debug the project i get Access violation's every time i call functions on the dll. But if i run without debugging everything works the way they are supposed to. I have the .h file and the function definitions are correct, and work when not being debugged.

I am suspecting that there is a compatibility issue as windows gives me a application compatibility manager prompt when i run it. I dont think there is a problem with the code but rather some problem with the project settings.