I Think You Need To Specify The
<connectionstrings>
<add name="esystem.my.settings.esystemdbconnectionstring" connectionstring="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|\esystem.mdb;Jet OLEDB:<b><u>User ID:Administrator;</u></b>Database Password=abcd;" providername="system.data.oledb" />
</connectionstrings>
Please Check That.
Because While Connecting To MS Access DB Through VS We Need The User Name And Password.
So Check The User Name For Your MS Access DB
Also There Is Another Method. Create A udl File And Set The Connection From There. You Will Get The Connection String.
Accept The Answer If It Has Helped You