Hello Kannan, On most computers "C:\Program Files\Internet Explorer\" is where iexplore.exe is, thus the defualt directory. C:\Program Files\Internet Explorer\PLUGINS\ is for plugins but you should check out MSDN or someting for more info on writing plugins, and yes the dir's are in the registry, you should configure your install program to read thoose specific keys. -Jeff I can help you in other ways, if you need more keep posting on this board; maby I or the others can give you more help.