The ASUS virtual camera is an application that basically allows more than one program to access your camera simultaneously. Even when it's not selected, Procaster will still detect it and give you the error message.
You can uninstall ASUS Virtual Camera from your computer by using the Add/Remove Program feature in the Window's Control Panel.
On the Start menu ( or for Windows 8, right-click the screen's bottom-left corner), click Control Panel, and then, under Programs, do the following:
Windows Vista/7/8: Click Uninstall a Program.
When you find the program ASUS Virtual Camera, click it, and then do the following:
Windows Vista/7/8: Click Uninstall.
Follow the prompts. Restart the computer and let me know if you receive the same error message.
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