I downloaded Aspose.Words 18.104.22.168 and installed it. Then I created a new WindowsApplication C# project with VS 2005.
I changed to the code of the default Form1.cs and opened intellisense inside the class definition:
public partial class Form1 : Form
------------> Opened intellisense here!
Everything looked alright. Then I added a reference to Aspose.Words 22.214.171.124 and did the same again. Now I got the strange entries I posted previously.
So upgrading to the latest version of Aspose.Words did not help.