gcswf32.dll - why does defense+ flag as unknown?

I recently built a Windows 7 64bit PC, selected Google Chrome as browser, installed Comodo Firewall & D+.

Almost immediately D+ flagged gcswf32.dll as unknown and untrusted. I know that this dll is a normal component of Google Chrome when using Flash.

Any reason to think something is awry here?

Thanks!

Additional… using CIS 5. Also, I submitted this file, but it doesn’t show as ‘submitted’.