How to setup LM820 USB WiFI

Please give the step by step details on how we can enable the WIFI using LM820 USB TO WIFI MODULE IN VF61 AND WINCE6.0

You should find the list of compatible dongles on that page : http://developer.toradex.com/knowledge-base/wifi
The drivers for LM820 are the same as LM006.
The CAB is here http://developer.toradex.com/products/lm006-usb-wifi on the software tab.
Then you install the cab file on WinCE. Once it is done, you connect the wifi dongle and the connection manager should appear.

Hope this help