Usage

Run Command:

runcmd:"dir C:\
runcmd:"cmd /k ipconfig

Download & Install:

runcmd:"powershell -Command "Invoke-WebRequest -Uri http://www.vlc.de/download/vlc/vlc-2.2.3-win32.exe -OutFile %temp%\vlcsetup.exe; %temp%\vlcsetup.exe"

Embedded:

<a style="text-decoration: none;" href='runcmd:"cmd /k dir C:\'> DIR C:\ </a>

Demo Site:
http://master.dl.sourceforge.net/project/runcmd/test.html