I&#039;ve been working with some example code provided by 4 guys:<BR><BR>http://www.4guysfromrolla.com/webtech/083100-1.shtml<BR><BR>The code works great with Netscape and Internet explorer but I&#039;m having an issue with Opera. When I click on a doc file or pdf file (linked using an asp page) Opera prompts to open the file with the associated application but then when you click open another application (my html/asp editor) launches. I used a script at http://www.delorie.com to look at the headers as they are written from a direct docfile link and from the ASP page the headers are written as follows:<BR><BR>DOC Link:<BR>HTTP/1.1 200 OK<BR>Server: Microsoft-IIS/5.0<BR>Date: Sat, 23 Feb 2002 15:17:29 GMT<BR>Content-Type: application/msword<BR>Accept-Ranges: bytes<BR>Last-Modified: Sat, 03 Jun 2000 02:24:58 GMT<BR>ETag: "03974e92cdbf1:9d8"<BR>Content-Length: 25088<BR><BR>ASP Link:<BR>HTTP/1.1 200 OK<BR>Server: Microsoft-IIS/5.0<BR>Date: Sat, 23 Feb 2002 17:13:01 GMT<BR>Content-Disposition: attachment; filename=reqforms.doc<BR>Connection: Keep-Alive<BR>Content-Length: 25088<BR>Content-Type: application/msword<BR>Set-Cookie: ASPSESSIONIDQQGGGMQU=MCAHEAHDJCHBBGIBNLILGDAF; path=/<BR>Cache-control: private<BR><BR><BR>I&#039;ve tried adding the headers that are seen with the direct doc file link but nothing seems to help. It&#039;s almost like opera is looking for things in a certain order. The only work around I&#039;ve found is to set operas "handling of filetypes" from default of "determine action by file extension if MIME type is unreadable" to "Determine action by MIME type" This isn&#039;t the default browser setting which means it&#039;s likely end users will see the bug if they&#039;re using Opera. Anyone ever seen this before?