echo MyProj : error : could not copy files.

.*: .*error.*:

echo bla
exit /b 1

1>------ Build started: Project: XXXX, Configuration: Debug Win32 ------
1>Performing Pre-Build Event...
1>bla
1>Project : error PRJ0002 : Error result 1 returned from 'C:Windowssystem32cmd.exe'.
1>Build log was saved at "file://c:XXXXXBuildLog.htm"
1>XXXXX - 1 error(s), 0 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

set errorlevel=1
exit /b

#include <cstdio>

int main(int argc, char * argv[]) {

    if (argc == 2) {

        return strtoul(argv[1], NULL, 10);

    } else {
        return 0;
    }
}