Webroot SecureAnywhere is flagging a file in the SDK as infected with "W32.Malware.Heur."  The file is named "xceed.dockingwindows.v2.2.dll."  Anyone else, or a false alarm most likely?

I just scanned that file with Kaspersky A/V (which misses no malware, so I'm told) and the file is clean. Just exclude it. It's a 3rd party library from Xceed Software:

 

https://xceed.com/xceed-docking-windows-for-winforms/