as the overrides as selective cases, you can change them all to be just override.
and then you don't need long if's anymore. this way the script would be:
code:
SELECT
CASE INGROUP("GL helpdesk-telebilling")
$override = "helpdesk.telebilling.dk"

CASE INGROUP("GL Servicerufnummern")
$override = "www.ihre-servicerufnummer.de"

CASE INGROUP("GL Call Center")
$override = "www.teleauskunft.de;www.bankleitzahlen.de"

;CASE INGROUP("Team Intranet")
; $override4 = "bla.de"

ENDSELECT

; Write ProxyOverride
IF $override
IF $proxyoverride
$proxyoverride = "$proxyoverride;$override"
ELSE
$proxyoverride = "$override"
ENDIF
ENDIF

IF $proxyoverride
$proxyoverride = "$proxyoverride;nc*;192.168.*;*.nordcom.net;10.2.6.7;jurcom5.juris.de;www.alexanderschneeweis.de;<local>"
ELSE
$proxyoverride = "nc*;192.168.*;*.nordcom.net;10.2.6.7;jurcom5.juris.de;www.alexanderschneeweis.de;<local>"
ENDIF

;LogEvent( 0 , 1 , "$proxyoverride")
Writevalue ("HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings","ProxyOverride",$proxyoverride,"REG_SZ")
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