How to run My Computer on a remote server to get the disks total size and free space list

Have you considered running windirstat on the remote computer? http://windirstat.info/

it's a very small and powerful program

No, How do I run windirstat on a remote server from my server?

Can you use RDP to connect to the other server?

http://www.hosting.com/support/dedicated/general/rdesk

What I need is to run it from the server I am logged in, thus avoiding the need to do RDP.
If I'll  use RDP then I don't need anything because I have My Computer at the remote server.

this tool might fit the bill:

http://technicalmeltdown.wordpress.com/2010/08/14/check-disk-space-on-a-remote-computer-quickly-with-psinfo/

You also might want to try spiceworks: http://www.spiceworks.com/

You may want to try Treesize it works for all kinda things.

http://www.jam-software.com/treesize_free/

chris_martin62:
How do I run Treesize on a remote server from my server?
npinfotech:
How to get the output from psinfo into an excel or a readable format?

npinfotech:
I need the task to be done without any manual operation, just run a script and that's all.

The treesize solution is very slow because I must wait for the scan of all the disk drives before i get any output.
Using the my computer instead gives an immediate screen with disk capacity and free space for each drive.