you can download some bridge drivers from EasySofthttp://www.easysoft.com/products/platforms.phtml?platform=02or if you are using Java, you can download the JDBC driver for SQL Serverhttp://msdn.microsoft.com/downloads/default.asp?URL=/downloads/sample.asp?url=/MSDN-FILES/027/001/779/msdncompositedoc.xml
http://www.unixodbc.org/