How to remove dialog boxes

I have a MessageBox asking if the user wants to copy some files. If he selects yes, he is shown a dialog box where he can select file locations(AskDestPath). If he presses the BACK button to see the MessageBox again, the MessageBox appears on top of the AskDestPath dialog. Also, when operations are being done, this dialog appears until it is replaced by some other dialog box.

Is there any way to make the AskDestPath dialog disappear when the back button is pressed?

Thanks,
Vishwa

The whole operation of the setup wizard is controlled under the OnFirstUIBefore event.

Therefore just add a variable to determine whether or not you've displayed AskDestPath and/or change the behavior of the the next dialog when the result is on back.

You may also want to call
Disable(DIALOGCACHE);
to remove the dismissed dialog box from the screen.