How can I start Remote Assistance and Offer Remote Assistance from the command-line?
http://www.jsifaq.com/SUBQ/tip8000/rh8047.htm
To start Remote Assistance from a command line, or shortcut:
%SystemRoot%\System32\rcimlby.exe -LaunchRA
To launch Offer Remote Assistance from a command line, or shortcut:
"%ProgramFiles%\Internet Explorer\iexplore"
hcp://CN=Microsoft%20Corporation,L=Redmond,S=Washington,C=US/Remote%20Assistance/Escalation/Unsolicited/Unsolicitedrcui.htm