DetourFinishHelperProcess

Microsoft Research Detours

DetourFinishHelperProcess

Finishes updating a target process from the helper process.

Definition

VOID CALLBACK DetourFinishHelperProcess(
    _In_ HWND,
    _In_ HINSTANCE,
    _In_ LPSTR,
    _In_ INT);

Remarks

When creating a 32-bit target process from a 64-bit parent process or creating a 64-bit target process from a 32-bit parent process, the DetourCreateProcessWithDllEx API must create a temporary helper process. It loads a copy of the user-supplied DLL into the helper process using the rundll32.exe mechanism. Rundll32.exe will call DLL's Ordinal 1 export function. The DetourFinishHelperProcess API must be set as the DLL's Ordinal 1 export function.

Within its DllMain function, a user-supplied DLL can determine if the process is a helper process or a target process by calling the DetourIsHelperProcess API.

For more information, see Detouring 32-bit and 64-bit Processes.

Related Samples

Simple, Simple, Slept, Traceapi, Tracebld, Tracelnk, Tracemem, Tracereg, Traceser, Tracetcp, Tryman.