Troj/PSW-ED is a Trojan for the Windows platform.
When run Troj/PSW-ED copies itself to <Root>\patcher.scr and creates the file <Root>\patchar.ini. The file patchar.ini can be safely removed.
The following registry entry is set to run Troj/PSW-ED on startup:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
game
patcher.scr