The quickest way to launch the wowlet OpenVR overlay is to create a batch file in the same directory as wowlet.exe. Create a new BAT file by right-clicking an empty space within a directory and selecting New, then Text Document.
Double-click this New Text Document to open your default text editor. Copy and paste the following code into your text entry.
@echo off wowlet.exe --openvr
The above script will launch wowlet in OpenVR mode. Save your file by heading to File, Save As, and then name your file what you’d like. End your file name with the added .bat extension – wowlet-openvr.bat for example – and click OK. Now, double-click on your newly created batch file to launch.
After your wowlet has been launched in openvr mode a window will not open on your desktop, steam will start if it has not already started. When you are in SteamVR you can access by clicking the wownero icon on the menu bar