Where can i find ado dll?

[gpalmia]

I installed framework.net from Beta2 version of visual studio.net and I
cannot implement a riferiment of ADO in a project becouse I cannot find the
path of the dll.
Where can i find ado dll?

[Cander]

ADO .NET namespaces are located in

your_windows_directory/Microsoft .NET/Framework/v1.0.xxxx

and the file is System.Data.dll