Since 'L', 'M', or 'N' are the default Citrix Drives this is what I use...
code:
:CITRIX
IF((%SYSTEMDRIVE% = L:)OR(%SYSTEMDRIVE% = M:)OR(%SYSTEMDRIVE% = N:))
   ? "[ You are logging into a Citrix Server       ]"
   ? "[ The Login Script will exit without running ]" + @CRLF
   SLEEP 3
   GOTO END
ENDIF
HTH

Rocco
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I Love this board!! -------------------- My DEV PC is running KIX 4.22 WINXP Pro