ISQL parameters are case sensitive so you've to use -L not -l.

>When I try it a cmd window opens asking me for a password. So it is trying to connect to a server to validate.
>
>>For -L option you don't have to login to any servers.
>>
>>>Yes, but you still have to connect to a server to use ISQL.
>>>
>>>>Dan,
>>>>
>>>>ISQL/OSQL are command-line utilites so you can run them using VFP RUN command and than parse there output.

lcTempFile = ...
>>>>RUN ISQL -L > "&lcTempFile"
>>>>? FILETOSTR(lcTempFile)
>>>>