Dolphin 4.0-5886 not working

[afro-ninja]

I'm posting here because I've encountered the same problem.
I am using build 5886 for netplay+ wiiU adapter native support.

When I attempt to run dolphin.exe nothing happens. My cursor will display the 'waiting' graphic for about 3 seconds, and then revert to normal.

I am using Windows 7 x64.
Windows is completely up to date.
I unzipped the dolphin installation with 7z and copied to a brand new folder.
No other background instances are running.
I've re-downloaded several times.
I have no virus scan installed.
I tried adding portable.txt to the folder, this changed nothing.

Also worth noting:
This appears to be an issue with any dev build that I download. The latest stable build works fine.

[JMC47]

It's a libUSB issue. reinstall the drivers for Native GC support and stuff.

[afro-ninja]

This?
http://sourceforge.net/projects/libusb-win32/

And you're saying the absence of this driver actually causes dolphin to not run?

[JMC47]

I'm saying hte LibUSB is looking for the Native GC Adapter, and something is causing it to fail, which then causes Dolphin not to run.

[afro-ninja]

got it, thanks, was able to fix this by following the instructions here:
https://wiki.dolphin-emu.org/index.php?title=How_to_use_the_Official_GameCube_Controller_Adapter_for_Wii_U_in_Dolphin