Here is a video showing some examples for Remote CMD on Windows 8.1. The video only shows the computer screen, but here is the tasker task that I used in the video:
1) plugin->Remote CMD, fill in ip and port, then command as: notify hello, how are you?
2) wait 5s
3) plugin->Remote CMD, command: open start chrome google.com
4) wait 5s
5) plugin->Remote CMD, command: sms %SMSRN | %SMSRF | %SMSRB