There is a file in the C:\windows\crystal folder that indentifies which global files can be used as database selectors when creating new reports with Crystal Reports for Adagio. Typically this means all Adagio products and not 3rd party applications. If you get the 'unrecognized database' message, this usually means the particular global file is not on the list.

The reason for this list is so that the correct table(s) can be loaded for the application by checking the global file and the offset for the version number. Another reason for getting this error is that the global file has an invalid size (ie is corrupt), so when Crystal goes to look for the version, it finds something it isn't expecting and bails. A typical DIC won't find this, but DataCare with field checking will.

When an application needs to load a new table or gets a new internal version, it updates the local Crystal file mentioned above. This is why you would install applications after Crystal Reports.