Returns the maximum number of connections that a user is limited to. A
zero means unlimited connections. If UserName isn't specified then the
current user is assumed. You can also use this command to set the limit.
Example:
Writeln NovMaxConnection ('FRED') ; Fred's Limit
Writeln NovMaxConnection ; My Limit
NovMaxConnections ('BARNEY') = 5 ; Set Barney's limit to 5
