It works when OutlookSettings.kix is carried out manually.

@curdir was indeed the trouble I posted earlier in my ever first posting here today. I solved it by replacing it with this:
$installsource = "\\server\Outlook2000$"
USE Z: /delete
USE Z: $installsource
@curdir = $installsource
$Scriptspath = "Z:"

Maybe it's better if I post it the whole story in the next one, cause I've been struggling with it for the last 2 days and I'm very tired now

Tnx.