CreateProcess

Question

Hi all, I've been struggling with the WinAPI CreateProcess for some time now.
CreateProcess failed
Error code = 2
How to fix it?
CreateProcess(L"xxx.exe",
cmd,
NULL,
NULL,
FALSE,
0,
NULL,
NULL,
&si,
&pi)

Answer 1

The error code 2 means "The system cannot find the file specified". Probably it cannot find "xxx.exe"

Try specifying the path: CreateProcess(L"C:\MyFiles\xxx.exe", cmd, ...).

Answer 2

This is a well-known problem with CreateProcess. See Creating Processes; use NULL for the ApplicationName (first parameter) and use the executable path and filename in the second parameter.

Answer 3

You can use GetModuleFileName if your .exe is in the main executable directory
Like :

WCHAR wszExe[MAX_PATH] = L"xxx.exe";
WCHAR wszDrive[MAX_PATH], wszDir[MAX_PATH], wszModule[MAX_PATH], wszPath[MAX_PATH];
GetModuleFileName(NULL, wszModule, MAX_PATH);
_wsplitpath(wszModule, wszDrive, wszDir, NULL, NULL);
swprintf(wszPath, L"%s%s%s", wszDrive, wszDir, wszExe);
STARTUPINFO si;
PROCESS_INFORMATION pi;
ZeroMemory(&si, sizeof(STARTUPINFO));
ZeroMemory(&pi, sizeof(PROCESS_INFORMATION));
si.cb = sizeof(STARTUPINFO);
CreateProcess(NULL, wszPath, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi);