Outlook Express in Win7

Outlook express itself can not be installed in Windows 7. But if you have Windows 7 Professional, you can run windows XP mode, and then install OE from there. Once installed there is an option to link XP mode apps from the Win 7 start menu, but its not exactly a fast startup (for the app) as the Virtual emulator has to boot up in the background first. Alternatively, some ZT users have downgraded their Windows 7 license to XP.

Yes it is possible, first you need to follow these steps :

1. Install Windows XP mode on your PC.
2. Install Microsoft Virtual PC.
3. Run XP Mode in Virtual PC.
4. Open Outlook Express in virtual pc.

There you got Outlook Express running on Windows 7.

Reference : http://techsultan.com/outlook-express-windows-7-guide/