The 1.3 patch or Module Edition Upgrade package updates The Witcher to version 1.3 and adds the functionality of running a user editable module. The sample module has been provided, offering a couple of hours of additional gameplay, which can be altered by the user using the D'jinni Adventure Editor. The New Game main menu offers two options now: starting the regular game, or starting new adventure (new module). Please download Microsoft hotfix from the following location when playing the game on 32-bit Windows Vista: KB940105 unless you already have Vista Service Pack 1 installed.