Possible Duplicate:
System.BadImageFormatException “invalid format” when trying to install service with installutil.exe
When I install my Windows Service App, I get the following exception:
Error 1001. exception occurred while initializing the installation :
System.BadImageFormatException: could not load file or assembly
…..file.exe or one of its dependencies. An attempt was made to load
a program with an incorrect format.
This means that one of your assemblies is compiled for 64-bit mode and tries to load a 32-bit one, or vise versa.