We have the project structure as follows:

COMExposedCCW.dll -refers-> BusinessLayer.dll -refers-> Utils.dll

COMExposedCCW.dll -refers-> Utils.dll

The COMExposedCCW.dll has been registered for COM interop.

From the COM application{Excel} we can successfully create the CCW object and access its properties, but when we try to invoke methods that refer to the Business/Utils layer, it throws an exception that the file or assembly{Business/Utils} could not be found.

The Business/Utils dlls are present in the same folder as the CCW.

On copying the Business/Utils to the COM application directory it works fine.

I've tried the following:

• Set "HintPath/>" in the CCW project

I dont want to dynamically load the assemblies using Reflection {there should be a more elegant solution}

Thanks in advance.