I'm getting an "open zip file" window when I try to download docx files via a web application written in PL/SQL, on an Oracle 10g Database.

I can save them, then open them, but how do I get them to just open in Word like the .doc files?

I found a previous thread about this, but the original poster never said if it had worked for him or not. And I don't think we have IIS, either.