This isn't technically an HTML question, but I figured that this is probably the best forum to post this question. How do you change which application will launch inside Internet Explorer for a certain document type? For instance, say I have Adobe Acrobat installed, and I want Acrobat Reader to launch inside the browser instead of Adobe Acrobat (for much shorter startup times); or if I want an xls file to be launched with Excel instead of OpenOffice, or whatever. I changed my settings inside Windows Explorer, and they work correctly inside Windows Explorer, but Internet Explorer uses different settings and I can't seem to find them. Thanks in advance.