I'm trying to call an external command prompt process during a simulation. In order to do that I call the process using the following code:
CreateProcess(NULL, // No module name (use command line) TEXT("C:\\WINDOWS\\system32\\cmd.exe")
(LPSTR)input, // Command line (LPSTR)input
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
Where my input string is my command line argument. When I run my simulation I get an error code 183, which says "Cannot create a file when that file already exists.".
So to resolve this I tried replacing the first argument "NULL" with the location of cmd.exe on my system. When I run my simulation that way I do not get error code 183, however, my process only seems to stay active for 1 program loop and my Opnet process becomes unresponsive.
I can run this instruction to start other programs such as notepad, but for some reason it doesn't want to work for a command prompt process.
Is there something here that I'm doing wrong to create an external command prompt process?
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