Hi. Powershell 5 is avaible in win8.1, so even if you will find way to run it on computer (the easiest way, is to copy .ps1 file to computer and run "powershell script.ps1") the question is, If system will support PS5. On what OS versions you want to use that?
Another thing - in this powershell scrip, you are indeed running wscript/csctipt (vb script). Mayby the easiest solution will be switching directly to vb? It will be easier, because running script in powershell might need extra configuration of system.
Here is way to create shortcut: http://ss64.com/vb/shortcut.html
VBS can be done running "wscript script.vbs" or "cscript script.vbs"(this is better in my opinion - output is in console). Of course, first you need to copy vbs files from server and then run it (you can do it in one run script)