Who's the no-brainer?
Why snip the original post so no-one knows what you're talking about?
I assume someone is having troubles emailing a screensaver.
If so, it's obvious that they are running some program such as Mailwasher,
or along the line something is stripping anything with a .scr extension - a
well known virus extension.
Simple solution - zip it and send the zip file as an attachment.