i want to develop a remote access solution like a clone of www.logmein.com what i want is that my server to be coded in C# and when servers runs on certain machine i could acces that machine via it's IP and an agreed port number using my web broswer on a remote machine. like i wrte in browser http://188.8.131.52:2002 and login page should be there where i will log in by giving passord of my windows acount and then i could tranfer files and gain control via web interface. i want some one to give me a start. some to tell me that what this terminology is called in purticual. what should study first. what we mean by web based remote acces. where client is web browser not an other dextop application. pleas is there some one to help me in this. i am really not able to get a start.