All you have to do is Paste the following code into Notepad and save it as useragent.reg so that it will modify the registry.
CODE IS: :
[HKEY_LOCAL_MACHINE\SOFTWARE\Micro$oft\Windows\CurrentVersion\Internet Settings\5.0\User Agent]@=”Googlebot/2.1″”Compatible”=”+http://www.googlebot.com/bot.html”
And for the Default settings paste the following code into Notepad and save it as defuseragent.reg
CODE IS:
[HKEY_LOCAL_MACHINE\SOFTWARE\Micro$oft\Windows\CurrentVersion\Internet Settings\5.0\User Agent]@=”Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)”
Now all you have to do is to execute the useragent.reg when you want to open those sites and when it is done open defuseragent.reg and every thing will be same.!