New versions come out every month.
The Subseven Apocalypse version is just an improved version of the client and comes out with the 1.9-server. Depending on the filename of the trojan you have, you can CD directly into the right dir and delete the actual trojan. To delete the trojan, type delete replacing 'filename' with the name shown in the dir listing. Once you delete the trojan itself, type exit to return to windows. If you have a version that uses win.ini, you will see an error dialog box or two that windows cannot find a system file, click ok and ignore these.