WLM Safe is a script for Messenger Plus! Live (extension for Windows Live Messenger), that is, in order to use WLM Safe both Windows Live Messenger and Messenger Plus! Live need to be installed on your PC.
Download the script, open it, accept the warning and press Import and click on Install button to install it.(You must sign in to your Windows Live Messenger before importing the script).
You can configure WLM Safe and access different tools like ‘Clear Cache’, etc by clicking on the script button.
WLM Safe is completely free and only 226Kb in size. You can download it from here.