Awind WIGA / WGA-210 User's Manual - Manual (Page 16)

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3.7.5 Searching Server
Click “Search Server” to re-search the WPS again.
3.7.6 Projection Source
Click the “Projection Source”, you can select to project the main screen of
desktop or the virtual extended screen.
P.S: Virtual Extended Screen option
You need to install “VDD.exe” driver first which is stored in the USB token.