There is a form called Calendar with a blank box where the calendar control should be! When you look at the properties, CalendarESBNG is an ActiveX control, which looks as if it was custom written, but is no longer being picked up by the database. The 'class' is ESBNGCalendar.E SBCalendar, rather than a more typical microsoft calendar class, which leads me to believe that whoever wrote the db modified or created their own activex calendar control....

When I start up the database in Access 2007, I get "run time error '438' - Object doesn't support this property or method".
The offending code is as follows:
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Thanks zmbd - I had seen some of those microsoft suggestions, but figured I'd ask on a forum such as this too!

As far as I can see, there are some extra attributes assigned to the calendar object - for instance it will return the isoweek value based on the current date. ISO weeks sometimes start the last week of the previous year, or sometimes start two or three days into the new year. (Some years will have 53 ISO weeks, and other...

I have inherited an Access Database that seems to work in Access 2003 and earlier but not in 2007 and later, and the issue is around a custom-built calendar control which appears to be similar to the existing MS calendar control but with some extra methods added such as "cal.ISOWee k", "cal.ISODay ", based on ISO calendar system. There is no documentation for this control, and I've no idea who created it - probably long since...