queryunload versus unload events.. please clarify..

Hello I have been using the form_unload even to save data from text boxes, etc in my form to a database. but i read recently that saving data should be in the queryunload event and that the unload event happens after the form is removed from memory. I have not had any problems using the unload event, the data is saving fine. can someone clarify the danger or the difference between the two? also, I when a user exits the program I have the form_unload event ask the "Are you sure you want to exit.." question, if they hit yes then it unloads, if they hit no, then the cancel is set to true. I read that that was also supposed to be in the query_unload and if you put it in the form_unload you should do a form.show command which I don't but it seems to cancel the exit just fine. Hope this all makes sense, Im just confused on the difference of the two since I haven't had a problem using form_unload.

Thanks,
Thai

One difference between the Unload and queryUnload events is that the latter lets you interogate the UnloadMode parameter to tell if it's your code, or the user, or a system shutdown, etc that is causing the form to be unloaded and that may make a difference in what you want to do at that point.