Access Database Error: Could not use '(unknown)'; file already in use

[sukishan]

Could not use '(unknown)'; file already in use
Microsoft OLE DB Provider for ODBC Drivers error '80004005'
[Microsoft][ODBC Microsoft Access Driver] Could not use '(unknown)'; file already in use.
This is a bit of an odd error that I have never received myself but have been asked about on number of occasions. It usually means that either incorrect permissions are set on the server or the incorrect version of MDAC (Microsoft Data Access Components installed on the server or the version is not correctly installed). You need to ensure the ODBC version you have is 4 or greater.

If you are running the web server yourself then read the FAQ, Checking and Setting up the Correct Permissions on the Server and the FAQ on, Checking you have the correct ODBC Access Database Drivers.

If you are not running the server yourself you will need to contact your web space provider and ask them how to sort the problem out.

Another reason for this error is that you have the database already open in MS Access or another program, if this is the case shut down the other program you have the Access database open in.