Question

I have a console application written mostly in C#, targeting .Net 4. It also uses a C++/CLI library which wraps an unmanaged C++ one. Everything is built in Release mode for x86 platform, except the C++?CLI library which is built in Win32.

So when I invoke the console application on my Win 7 workstation, it works. However, when I move over the folder to my Win 2003 SP2 app server, it does not load, claiming the following:

“System.IO.FileNotFoundException: Could not load file or assembly ‘MyWrapper.dll’ or one of its dependencies. The specified module could not be found.
File name: ‘MyWrapper.dll'”.

I found the advice to add the following to my app.config, but it does not help:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <startup useLegacyV2RuntimeActivationPolicy="true">
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
    </startup>

What am I missing?

Edit: .Net 4 is installed on my Win 2003 SP2 app server, and console apps written in pure C# and targeting .Net 4.0 do work on it.

Edit 2: MyWrapper.dll is in the same folder.

Edit 3: DependencyWalker shows the following dlls are missing: MSVCP100.DLL, MSVCR100.DLL, DWMAPI.DLL. I am installing the redistributable.

Answer 1

My guess (if MyWrapper.dll is the Mixed mode assembly): The Microsoft Visual C++ 2010 Redistributable Package (x86) is not installed. You can use http://www.dependencywalker.com/ to find missing DLLs. Start Dependencywalker and open MyWrapper.dll – and you can find any missing DLLs.