Connection string issues

I have problems connecting my database to an asp.net page. I have already switch the website in IIS to allow for 32bit applications but it doesn't work. It shuts down the entire webpage. I also switched the connection string to:
conn.Provider="Microsoft.ACE.OLEDB.12.0"
I keep getting same error:  provider cannot be found. it may not be properly installed. 
<% set conn=Server.CreateObject("ADODB.Connection") conn.provider="Microsoft.Jet.OLEDB.4.0;" conn.open server.mappath("databases/Phone_Directory.mdb") '*---------------------------------------------------------------- searchentry = request.querystring("searchentry") '*---------------------------------------------------------------- ' SQL St ...