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Error code 126: How to fix this problem on Windows

Posted by Lee Baker on Thursday January 18, 2018

PlaneCommand 3 sometimes won't load for users of older versions of Windows- everything except for Windows 10. If you've recently installed PlaneCommand 3 and you can't see the headset at all in X-Plane, check your Log.txt file in the X-Plane 11 folder.

C:\X-Plane 11/Resources/plugins/PlaneCommand_v3.0.2/64/win.xpl : Error Code = 126 : The specified module could not be found

If you see a message like this anywhere, this fix is probably for you.

The fix

Download the fixed version here.

I've made a temporary version of PlaneCommand that has a fix. It's identical to version 3.0.3, which you can get on the download page- but it has the fix.

You can delete your existing PlaneCommand installation, and install this in your "X-Plane 11/Resources/plugins" folder instead.

Why did this happen?

I made a change in the way PlaneCommand was built. This was overall an improvement, except that it stopped working on Windows 7 and older, and unfortunately didn't find it in testing because I don't have any computers running older versions of Windows. I've identified the cause, and hopefully we can avoid this in the future.

About PlaneCommand

PlaneCommand is an add-on plugin for PC flight simulators uses speech recognition technology to emulate a co-pilot. The voice interface frees virtual pilots from needing to memorize arbitrary keyboard commands, and provides a natural speech interface to many common cockpit instruments. Realism is enhanced by assisting the pilot with common cockpit tasks like tuning radios or configuring instruments.

PlaneCommand supports the X-Plane 10 and 11 flight simulators on Windows and Mac OS, and fully supports VR. Support for Microsoft Flight Simulator coming soon. A free demo version is available for download, and the full PlaneCommand Pro license is available to purchase at

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