Hello,
first of all thanks for this article it helped me much in my project.
It's working for all the applications i want except one : Openoffice (3.1).
I can redirect ol32.dll without any problem but when i try with gdi32.dll it crashes during the launching, and it crashes at start with user32.dll. I made several tests without any success even if i just redirect all originals functions it crashes the same way.
Do you have any clue of why it doesn t work.
Regards

braxivamov:

I can't say for sure what the problem might be with OpenOffice; I assume that you are building your redirector DLL against the same original DLLs on the target system? Have you tried running it in a debugger and seeing where it is crashing? Knowing what function in the DLL is causing problems can help a lot. In the case of user32.dll, it is probably crashing near the entry point, so you could single-step through the code and find the culprit in short order. For gdi32.dll, you'll probably want to go into your debugger (OllyDbg for instance) and set a breakpoint on all calls to gdi32 to see where the problem is.

I didn't know about the loadFrom attribute in the manifest files, and I couldn't dig up much on it. According to Microsoft's Schema (http://msdn.microsoft.com/en-us/library/aa375635(VS.85).aspx), it looks like it would just be another attribute to the file tag in the manifest though, so it would look something like:

<file
    name="user32.dll"
    loadFrom="c:\"
/>

I'll try it out when I get a chance - if you try it first, let us know if/how it works!