Windows API - CreateProcess() path with space

Question

How do I pass path with space to the CreateProcess() function?

The following works

STARTUPINFO si;
            PROCESS_INFORMATION pi;

            ZeroMemory( &si, sizeof(si) );
            si.cb = sizeof(si);
            ZeroMemory( &pi, sizeof(pi) );

            if( !CreateProcess(_T("c:\\installer\\ew3d.exe"),    // No module name (use command line)
                _T("c:\\installer\\ew3d.exe /qr"),//argv[1],        // Command line
                NULL,           // Process handle not inheritable
                NULL,           // Thread handle not inheritable
                FALSE,          // Set handle inheritance to FALSE
                0,              // No creation flags
                NULL,           // Use parent's environment block
                NULL,           // Use parent's starting directory 
                &si,            // Pointer to STARTUPINFO structure
                &pi )           // Pointer to PROCESS_INFORMATION structure
                ) 
            {
                printf( "CreateProcess failed (%d).\n", GetLastError() );
                return false;
            }

            //Wait until child process exits.
            WaitForSingleObject( pi.hProcess, INFINITE );

            // Close process and thread handles. 
            CloseHandle( pi.hProcess );
            CloseHandle( pi.hThread );

But if I use a path with space as as the code below, it didn't work.

CreateProcess(_T("c:\\master installer\\ew3d.exe"),    // No module name (use command line)
                    _T("c:\\master installer\\ew3d.exe /qr"),//argv[1],        // Command line
                    NULL,           // Process handle not inheritable
                    NULL,           // Thread handle not inheritable
                    FALSE,          // Set handle inheritance to FALSE
                    0,              // No creation flags
                    NULL,           // Use parent's environment block
                    NULL,           // Use parent's starting directory 
                    &si,            // Pointer to STARTUPINFO structure
                    &pi )           // Pointer to PROCESS_INFORMATION structure
                    ) 

And quoting the command such as below didn't help too

CreateProcess(_T("\"c:\\master installer\\ew3d.exe\""),    // No module name (use command line)
                    _T("\"c:\\master installer\\ew3d.exe\" /qr"),//argv[1],        // Command line
                    NULL,           // Process handle not inheritable
                    NULL,           // Thread handle not inheritable
                    FALSE,          // Set handle inheritance to FALSE
                    0,              // No creation flags
                    NULL,           // Use parent's environment block
                    NULL,           // Use parent's starting directory 
                    &si,            // Pointer to STARTUPINFO structure
                    &pi )           // Pointer to PROCESS_INFORMATION structure
                    ) 

What is the right way to pass in the path with space?

Answer 1

In response to another answer, example #3 is NOT the correct one.

The issue is that the quotes should NOT encapsulate the module pathname passed as the first parameter of CreateProcess. However, quotes SHOULD encapsulate arg0 (again module path) as passed for the command line (second parameter of CreateProcess).

So, the correct rendition would be:

CreateProcess(_T("c:\\master installer\\ew3d.exe"),    
                    _T("\"c:\\master installer\\ew3d.exe\" /qr"),
                    NULL,           // Process handle not inheritable
                    NULL,           // Thread handle not inheritable
                    FALSE,          // Set handle inheritance to FALSE
                    0,              // No creation flags
                    NULL,           // Use parent's environment block
                    NULL,           // Use parent's starting directory 
                    &si,            // Pointer to STARTUPINFO structure
                    &pi )           // Pointer to PROCESS_INFORMATION structure
                    )