[otrs] Customer user backend on MSSQL

Ciao OTRS database is on mySQL, customers Users database in a Microsoft SQL Server database (managed by SAP Business One). OTRS is running onto a windows 2000 server, so I think that I cannot use FreeDTS. Do you know where may I find a MSSQL/SYBASE perl module usable on windows2000 ? I tried to find it, but only source are available. Because I'm not able to connect to MS-SQL, I'm writing a small program to copy Users data into the OTRS mySQL database table, but of course a direct connection to a DB view will be the correct solution. thank you for your help. Cordiali saluti. Simone Girlanda