Only way to stop it is to disable windows scripting and/or have a good anti virus that stops it cold. The free one I use http://www.grisoft.com stops them cold and they have regular updates. Another today actually.
Some said since we have the tongue smiley show when either using a colon p or colon P, to change one to that new smiley.
So now we have:
colon p=
colon P=
