Manipulating Word documents on server without Office installed (ASP.NET)

Question

I\'m working on a code to make a MS Word to HTML system. After googleing for about half a minute, I was able to find the code which does exactly what I need. Now.. It works

Answer 1

I think the OOXML SDK may contain something but it will only work with docx and not with the old doc.

As for the old formats I am also interested in a cheap and easy way to support them without the need to use the Automation APIs