Small issue with creating a process ( CreateProcess or ShellExecuteEx) with parameters - c++

Question

Related question: CreateProcess doesn't pass command line arguments.
Is there a difference between passing an argument vs. passing a parameter to an EXE when using CreateProcess (and/or ShellExecuteEx)?
I'm trying to call something like:
myExe.exe /myparam
with the code like :
TCHAR Buffer[MAX_PATH];
DWORD dwRet;
dwRet = GetCurrentDirectory(MAX_PATH, Buffer);
CString sCmd;
sCmd.Format ( "%s\\%s", Buffer, command);
CString sParam( "/myparam" );
sCmd += " " + sParam;
STARTUPINFO si;
PROCESS_INFORMATION pi;
ZeroMemory( &si, sizeof(si) );
si.cb = sizeof(si);
ZeroMemory( &pi, sizeof(pi) );
if (CreateProcess( NULL, sCmd.GetBuffer() , NULL, NULL, TRUE, 0, NULL, Buffer, &si, &pi))
{
::WaitForSingleObject(pi.hProcess, INFINITE);
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
}
else
{
LPVOID lpMsgBuf = NULL;
DWORD dw = GetLastError();
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
dw,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR) &lpMsgBuf,
0, NULL );
CString msg;
msg.Format("Failed to start command line (error: %s) : %s\n",lpMsgBuf,sCmd);
AfxMessageBox(msg);
LocalFree(lpMsgBuf);
}
From what I understand from the other thread and MSDN is that it should be working properly and call the EXE with the parameter; doing the above code without adding the "/myparam" works like it should.
I've tried the EXE from the command line and from Explorer (by creating a shortcut and adding /myparam to the target name) and it's working alright.

Answer 1

Try this in case there are spaces in the path:
CString sCmd;
sCmd.Format ( "\"%s\\%s\"", Buffer, command);
Or else pass the parameters via the parameters argument.