Hi I have a MAPI store provider which occasionally has erratic behaviour. Clicking on a folder in my message store sometimes produces a gray window with the message "Unable to display folder." At other times navigating away from my provider and clicking on the Exchange folders produces the same error but on the Exchange folders. The MAPI Store provider has an associated COM plugin which manipulates custom properties on my store. It reacts to changes in the currently selected folder. I was wondering what would cause this. My best guess is that the folder is being released more frequently than it's being acquired (AddRefd). Does anyone have any suggestions? Cheers Win
