I deal with it in a simple way. I'd just move Launcher.exe from its home which has the path: C:\Windows\SMINST\launcher.exe to (another) data folder to mess up the path to the program. It can't be executed if it cannot be found.
If it is not in that path, you need to search for the word launcher* in your hard drive/s. Make sure to check and turn on "systems files" in Folder Options first (under "View" tab, I think) so it would not be hidden from view.
As for the Trojan virus just scan your computer with an antivirus software. Trojan is a "older" virus most antivirus software would have had it "covered". It's faster that way.
Happy July 4th!