I am trying to work out why an NPAPI plugin I have written, which works fine in terms of performing operations triggered via Javascipt calls, cannot use CreateProcess() or ShellExecute() to launch an application from a path specified via the Javascript call.
I can seemingly use either of these methods and they return success, i.e. no error code. But the application just does not launch. I have tried modifying the parameters used when calling them, to create new process group etc. But seemingly with no effect.
I know this may seem like a bit of a security risk, but for the very specific purpose we wish to use it for it shouldn't be a problem.
Using Windows XP Pro SP3, Firefox 3.5 and the following code:
ZeroMemory( &si, sizeof(si) );
si.cb = sizeof(si);
ZeroMemory( &pi, sizeof(pi) );
if( CreateProcess( NULL, wFileName, NULL, NULL, FALSE,
CREATE_NEW_CONSOLE | CREATE_NEW_PROCESS_GROUP,
NULL, NULL, &si, &pi ) )
{
bSuccess = true; // Close process and thread handles.
WaitForSingleObject(pi.hProcess,INFINITE);
CloseHandle( pi.hProcess );
CloseHandle( pi.hThread );
}