diff --git a/Common/OS.cpp b/Common/OS.cpp
index e073e8927d89994290021aa9755edbd15591795b..f7f764dcf18855314914c11325e113bc8762f842 100644
--- a/Common/OS.cpp
+++ b/Common/OS.cpp
@@ -195,6 +195,8 @@ int SystemCall(const std::string &command, bool blocking)
     CloseHandle(prInfo.hThread);
   }
   else{
+    // DETACHED_PROCESS removes the console (useful if the program to launch is
+    // a console-mode exe)
     CreateProcess(NULL, (char*)command.c_str(), NULL, NULL, FALSE,
                   NORMAL_PRIORITY_CLASS|DETACHED_PROCESS, NULL, NULL,
                   &suInfo, &prInfo);