Exception:Cannot Start your application.The Workgroup information file is missing or opened exclusively by another user
We were getting this error when trying to connect to a password protected access file. This is what the connection string looked like
string conString =@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source="Path to your access file";User Id=;Password=password";
To fix the issue this is what we did
string conString =@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source="Path to your access file";Jet OLEDB:Database Password=password";
We removed the User id and changed the password to Jet OLEDB:Database Password
Hope this helps someone