InstallAware

What would cause this error? I was able to build successfully before, but have run into this issue. I am new to IA and have done very little changes to the install that I am working on, but it still can be something i am doing. I am using the Dev version.
I am running Win 7, 64 bit, IA Dev version (Demo).

Error during build: Cannot open file "C:\Program Files (x86)\InstallAware\InstallAware 17\interop\{40840161-0A58-4AB4-8873-CABA2669FB6A}". The process cannot access the file because it is being used by another process

ok, I figured this out. It was my icon file. For some reason no matter what icon file I point to, IA does not like it. If i remove the icon file, this message goes away and I can build fine. I need to find out what the requirements are for the icon files.

... just take a look at the ICO files available under the IA installation folder.
The "miaa.ico" file ... for example.

Regards