OK, 2nd attempt at link: https://www.wincustomize.com/ViewSkin.aspx?SID=1&SkinID=2954&LibID=29
Or
Search the OD library for SysCmd
Unzip it in the Docklets directory on your hard drive. Restart OD. Right click an empty spot on your dock and add entry. Choose the syscmd. Right click in the command to choose what you want it to do.