I have made connection with MS-Access

OleDbConnection cn = new OleDbConnection();
cn.ConnectionString="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=Path:\\File.mdb";
cn.Open();
Response.Write(cn.State);

Now if I run from localhost works fine. However if I run it from IIS geberates an error:

Server Error in '/Comp' Application.
--------------------------------------------------------------------------------
Could not use ''; file already in use.

What should I do?

Pls: The connection is working for MS SQL server