With mediapatcher you just patch your media.pk2 and redirect the traffic with silkroads own files, if you have a patched media.pk2 you cant play legit until you unpatch it.
If you want to patch your media.pk2 use this program then. In the Agbot folder there is a file called mediapatcher.exe. Copy that one to your Silkroad folder. Default location is c:\Program Files\Silkroad.
When you doubleclick the mediapatcher.exe file there will show up some message boxes where you clock ‘ok’.
Now the media.pk2 is patched, make sure Silkroad wasn’t running. Well, anyway this will not work if Silkroad is running.
Don’t remove the created ip.bak and port.bak files. You need thoose to unpatch the media.pk2.
Important edit: Do not use Mediapatcher.exe anymore since Legend V has been released! Mediapatcher.exe was modifying the media.pk2. Hackshield does a md5 hash on all the silkroad files to detect modified files.