What is installed?

Hi, You can access your Windows version using the System.Environment.OSVersion class. You can also refer to the following article to identify which version of SQL Server is running : http://support.microsoft.com/Default.aspx?id=321185#XSLTH3130121121120121120120 or more generally http://support.microsoft.com/Default.aspx?id=321185 As you'll see in that article, if you have access to the SQL Server itself, you can execute a simple query and get the version and if not, you can check the version of Sqlservr.exe which would need to be >= 2000.80.760.0. For MSDE, just look for the MSDE server's executable file. Hope this helps, Simon