A family of Microsoft relational database management systems designed for ease of use.
If you verify your Reference Libraries (Tools->References), are any of them marked as MISSING? If so, then you need to update your references or remove any that are not actually required.
Also, does you code compile?
I moved the file compatui.dll from Windows XP System32 folder to my Windows 8 System32 folder and it worked fine.
It only compiled the username/password window, but nothing else.
Just to test what you said, I removed the file and opened the Access file. I checked Tools, but I cannot select References. It is dim.
I still don't know what the reference does. I want to change the code so that the user does not have to install that file. :/