Execute Patcher, Choose language, wait for welcome screen, don´t hit continue.
go to your documents folder and to this location:
c:\documents\YOUR USERNAME\local settings\temp
and look for a folder which looks like {BLAH....} lots of numbers and chars. Go into that folder structure and copy the files in it ( e.g. patch.exe, all the files) to a folder where you can execute them ( e.g. create a dir named C:\temp)
then open a commandpromt ( type " cmd" in run/execute at startmenu) and go to your new created folder with the patchdata. Execute the with the following line ( edit to your installfolder location of course):
patch.exe " c:\FolderWhereBF 2Is"
Watch the magic happen.