server.mappath

I am copying and pasting code from a project that I made up in VS 2003. I am now using VS 2008.
I have the line of code
<code>
Dim root1 as String=server.Mappath("Logz")

</code>
This worked OK in the old version. Now it gives an error : The name server is not declared
I seem to have imported the correct classes. \Logz is the name of a folder.
What did I do wrong, please ?

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