Techinline supports desktop sharing and file transfer protocol with any firewall and proxy servers. Techinline Remote Desktop is very handy, gives a great user experience and has a browser based remote connection tool. With Techline remote desktop software, your support team can quickly view, diagnose, and fix remote desktops without pre-installing any software. I must say it's the best  tool if you are running a support service and need to access client desktops regularly for troubleshooting.

Techinline Remote Desktop has served first rank from the others in the niche due to its awesome handy features, are as

•  Very easy to connect and use.
•  It is transparent to any fairwall and proxy servers, So no one can stop you.
• Allows to control any desktop remotely anywhere in the world.
• Allows to Transfer files/clipboard between the remote and local computers.
• Allows to Reboot and reconnect the remote computer.
• Allow easy Sending and receiving text chat messages.
• Provides multimonitor support.
  

You can get  fully-featured 15-day trial of the latest version of the Techinline service absolutely free.