Why is this ilmerge command not working?

Ive got this ilMerge command:

"C:\Repositories\trunk\utilities\ILMerge\ILMerge.exe" /targetplatform:v4,C:\Windows\Microsoft.NET\Framework\v4.0.30319 /closed /target:winexe /ndebug /out:C:\TestReferences\TestReferences_Merged.exe "C:\TestReferences\TestReferences\bin\Release\TestReferences.exe"

And there are no references but even when there are the compiled .exe开发者_开发百科 just does not run. Even though this command works on all my other projects....

Is this a WPF application? According to the ILMerge site, they can't merge WPF assemblies.