If you have already activated the product you can get the activation code form
In eScan Products
Start>>Programs>>eScan for windows>>escan registration.
In Mailscan Products
Right click the mailscan Icon, Click on Mailscan Administrator. In Mailscan Administrator, License Tab.
If you have not activated the product you can get the activation code by following the procedure in the below mentioned link to activate via
Online/email
http://www.mwti.net/escanregistration.asp