Here is a list of the system tables used directly by SourcePro DB:

dbo.SYSCOLUMNS

dbo.SYSCOMMENTS

dbo.SYSINDEXES

dbo.SYSOBJECTS

dbo.SYSREFERENCES

dbo.SYSTYPES

dbo.SYSUSERS

master.dbo.SYSLOGINS

tempdb.dbo.SYSCOLUMNS

tempdb.dbo.SYSOBJECTS

tempdb.dbo.SYSTYPES

tempdb.dbo.SYSUSERS

The system variables in use are:

@@version

@@ncharsize

@@isolation