Is there any Remote Control API ?

[Extreme_Coder]

HI all,
I am currently designing a software which has to control WIndows 2000/XP boxes remotely. Is there any API, which I can use for this purpose ?

[kirants]

How does it communicate ? What is the communication medium ?
Remote can mean different things.. It can be a machine at another location and connected via internet, ethernet, Infrared etc.. Please elaborate

[Extreme_Coder]

The medium is LAN / WAN and communication will be through Wired channels and not Wireless. Basically, I am building a software like DameWare. I am finding a Exact API, to use for remote mangement, administration, screen and mouse event capturing, basically it should work like Terminal Services and Client. I have tested with Terminal Services API. My issue is, I should not start Terminal Services on any systems (my clients requirement :( ). For me it's hard to find How DameWare does this operation by using the Terminal Services API, without Startting the Terminal Services.

Thank you all in Advance.