The procedure described in topic #9 desn't work in my case
1) the unninstaller gives an error : Registry support initialization failed : 0x080080005 (run in safe mode). I tryed the different switches without success.
2) I cannot delete the file epfw.sys, used by a process (I cannot locate witch process.
Just hoping this problem will be solved soon by the developpers.
Thanks to all the participants of this forum