Why can't I uninstall eM from my control panel?

i’m having a problem uninstalling eM from my control panel. Any suggestions?

Sorry, but you’re going to have to do a little better than that. Please detail the problem.

sorry for the delay…I get the following error msg when trying to uninstall from control panel:

“The installation source for this product is not available. Verify that the source exist and that you can access it.”

Hope this helps.