With the newly changed script I get this now:

'\\Sussex1\NETLOGON'
CMD.EXE was started with the above path as the current directory.
UNC paths are not supported. Defaulting to Windows directory.

Error = 0 - The operation completed successfully.
checking user: CN=Kix Test

ERROR : unknown command [Logon]!
Script: \\Sussex1\NETLOGON\LDAP Call.kix
Line : 17

C:\WINDOWS>