Thx for all the advice, but still i am having trouble to get this to work, the creation of the regestry key is succesfull but i cannot get the copying of files to work.
here is my KiX script, any sugestions ??

code:
 IF INGROUP ("sintas") <> 0
  $sDatabaseSource="\\FS1\Profiles$\groups\sintas\data\"
  $sDatabaseDestination="\\fs1\randers-reb$\userdata\"+@USERID+"\applikation data\addon\"
  If Not Exist($sDatabaseDestination)
	Copy $DatabaseSource $sDarabaseDestination /s
	$sintasreg = "HKCU\Software\Add-On Products\exchange central\paths"
	IF KEYEXIST ($sintasreg) = 0 
	 ADDKEY ($sintasreg)
	ENDIF
	IF (WriteValue($sintasreg,"DefaultDatabase","\\fs1\randers-reb$\userdata\"+@USERID+"\applikation data\addon\","REG_SZ") <> 0 ) 
	? "Warning KIX: Error status @error (@serror)"
	ENDIF
  ENDIF
ENDIF
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One by one the Pinguins came and took my sanity away.