I have a project using both SQL 2005 and MS Access 97. I had downloaded the JetDriver earlier, compiled it against an older version of NHibernate and had it working to access both dbs using some custom code to set up the configuration for the Access part. I turned the Access 97 portion off for a while to speed up testing and have since downloaded a newer version of NHib and cannot seem to get the JetDriver compiled and working against the version of NHibernate that I have. The JetDriver solution (downloaded from Revision 1270 on nhcontrib) compiles against NHibernate Version 2.1.0.4000 but when I try to use it in my application I get an error that it cannot find one of the file necessary. I attempted to turn the assembly binding on but can't seem to get it to output the log. The JetDriver solution has Assembly verison 2.0.0.1001. Any suggestions on how to either find out what file my application cannot find or why the JetDriver is not performing as I expect?