CreateProcess无法运行批处理文件，错误代码为2

Question

I am creating a child process which executes a batch file

success = CodebenderccAPI::CreateProcess(
    NULL,
    (LPWSTR)command.c_str(),     // command line
    NULL,                        // process security attributes
    NULL,                        // primary thread security attributes
    TRUE,                        // Inherit pipe handles from parent process
    CREATE_NEW_CONSOLE,          // creation flags
    NULL,                        // use parent's environment
    current_dir,                 // use the plugin's directory
    &si,                         // __in, STARTUPINFO pointer
    &pi);                        // __out, receives PROCESS_INFORMATION

The above code was tested and works as it should in various machines but recently failed in a Windows 7 machine and I am still trying to figure out why...

I have ensured that the user has administrative permissions to the folder where the batch file is installed as well as that the batch file is in the working directory. Moreover I disabled the antivirus (to verify that it didn't cause the problem) and tried again with no sucess. CreateProcess always fails with error code 2: ERROR_FILE_NOT_FOUND.

Any ideas what could cause that failure?

Answer 1

Finally I managed to find out what was causing CreateProcess failure. Opened cmd and cd to the folder where batch file was located, then ran the batch file without any problem. After this, I navigated to the folder through file system and double clicked the batch file to run it. It failed with error message "Windows cannot find the_path_to the batch_file . Make sure you have typed the name correctly and try again." According to this post the above error is related with the COMSPEC entry. Checked its value in registry and found that it was different from the default value . Updated its value to the default and problem was solved!