I see similar questions and the answer is yes.
E.g. this post:
License GroupDocs - Free Support Forum - groupdocs.com
However, I’ve noticed that it works in most cases, but for GroupDocs.Metadata.NETFramework, I’m get…...thinks that the MSG file is an MP3 file: msgFile: C:\Temp\Temp\GroupDocs\test...Invalid riff header FileFormat: Mp3 Error: Unable to cast object...