In reply to:
We used FrontPage for several years using FrontPage Extensions. That's been unplugged by DH. I'm told that Expression Web is the new MS offering and that it is backward compatible (for my purposes) with FrontPage, so I hope to be able to use it on DH. But I can't find anything about it other than in a somewhat indirect reference to it in how to set up webDAV. Will Expression Web work on DH if I do what the DH instructions for setting up webDAV says?
I don't know what WebDAV has to do with your question.
I hope you realize that the deal with "extensions" is that they are computer programs that run on the web server. Instead of calling them "extensions" Expression Web uses ASP.NET technology. DreamHost doesn't support ASP.NET or Mono.
WebDAV is not related to the "extensions" issue. It is a method for sharing files online.
If your web site is interactive, such as processing form pages to access a database or send email messages or other actions that depend on a web server program, you will also need to develop for an alternative to ASP.NET, such as PHP, Perl, Ruby, Python etc.
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