This is the same calendar code as that posted earlier, using SQL Server. However, this time, it was run through the Database Code Converter Tool on the ASPNet101.com site to convert it from the SQL Server Managed Provider to the OleDb Managed Provider.
To download the zipped MS Access Database to work with this, Download Here. Then, to get this working on your system, just copy this code to a new file on your computer, change the connection string to match the path on your computer.