I have an Access database application and I would like to know the proper way of decompiling and recompiling it.
The other answers here all seem a little complex to my taste.
To decompile an Access database:
Open the Run dialog from the start menu, or hit Win + R
Type in: MSACCESS.EXE /decompile
(a proper installation should open up the Access application, you could also provide the full path to MSACCESS.EXE), and press OK.
Access now opens. Open up your DB in the Access window that just opened. That will decompile it.