Stores the current Tree into the String. By default only the first 100 are used. Also the Refresh oddity when switching between maximized MDI windows by pressing Tabs should now be fixed. The Tab control gets automatically re-sized. Most WinEdt's Modal dialogs now center with respect to the Main Form rather than the screen.
All parameters are optional and can be entered or modified once the e-mail client is started.
The lack of this registry key indicates that your email client may not support MAPI in which case the above fix won't make any difference. However, in some cases it is possible that although your email client has a sufficient MAPI functionality to allow WinEdt to send email messages the registry was not appropriately modified during its installation. Install WinEdt 5 following the above instructions and report any problems or other comments you might have regarding the program and the default setup. I will try to avoid them in the future. However, for this version some design mistakes had to be corrected and this will make it easier to go on from here.