Why won't a Delphi-XE2 64-bit windows program run from within integrated environment?

Question

An attempt to debug a small and simple 64-bit Windows application in Delphi XE2 gives this runtime error message: Unable to create process, ...

This error occurs upon an attempt to run the program with the build-configurations debug and release. It does not occur when started with the "Run without Debugging" in the project manager.

This happens only when trying to run the program from within Delphi's integrated environment.

This is on a 64 bit Desktop, with Windows 7 Professional and Delphi XE2 Update 4.

Answer 1

I have experienced exactly this. In my case the problem was my anti-virus (Sophos at that time). I had to completely uninstall the AV program to resolve the problem.