>Interesting problem...
>
>We have 2 class libraries, one named 1500, one named 2360.
>
>When we issue
>SET CLASSLIB TO 1500
>
>Everything is Ok,
>
>But later when we want to
>SET CLASSLIB TO 2360 ADDITIVE
>
>We get an error about the ALIAS is already used?
>.
>.
>.
>
>After a little research, loading 1500 from the command window, SET('CLASSLIB') returns
>
>...\CLASSLIB\1500.VCX
>
>However, if you add a class library with a character name, it returns something like...
>
>SET CLASSLIB TO WAYNE
>? SET('CLASSLIB)
>...\CLASSLIB\WAYNE.VCX ALIAS WAYNE
>
>From what it looks like, you can't simultaneously load two libraries with numeric names??
>
>Anyone ever seen this?

Why don't you set classlib to 1500 alias 1500?