Kan inte köra .exe från java?

	public static String execCmd(String cmd) throws java.io.IOException {
		java.util.Scanner s = new java.util.Scanner(Runtime.getRuntime().exec(cmd).getInputStream())
				.useDelimiter("\\A");

		return s.hasNext() ? s.next() : "error";
	}

        //I min main metod
        execCmd("minandrafil.exe arg0");

CreateProcess error=193, %1 is not a valid Win32 application