thanks for everyones help so quickly, I have just started the first suggestion and I will let you know, which one worked.
Have a nice weekend, everybody........
ok, <I did follow th path and I got down to : ACMru and 5603, but then there just 3 lines on the right opening, saying
Standard REG_SZ (Wert nicht gesetzt) menaing: nothing set
000 REG_SZ Christiane (my Name)
001 REG_SZ 2216
whatever that means