How do I pass a value to 'LPVOID lpReserved in Windows DLL entry point

Question

I am using CreateRemoteThread to load my DLL in another applications, but my question is how I can pass for exemple a string to my dll and retrive it from lpReserved ? I heard something like that is possible.

Answer 1

The remote process has a different virtual address space than the calling process, so indeed pointer values will be different. You would need to allocate memory specifically in the remote process, typically using VirtualAllocEx , which can allocate memory in a different process and return a pointer that's valid for that remote process only. You can pass this value via lpParameter .

I assume you mean lpParameter , and not lpReserved .

See also: DLL Injection with CreateRemoteThread