Can you please descibe more what you want to do and why you want to do it?
i want to put my company logo and all in login page instaed of epi server standard one. how i can achive this?
Build a custom login page using .NET standard Membership provider model etc. Really easy. Set login url in web.config to new login page
Validate the credentials with the MembershipProvider (.NET standard) and use the FormsAuthentication.SetAuthCookie() method to set the authentication cookie.
Then you have full control of design of page. Just a few hours of work normally.