Useful ASP.NET modules?

Question

I recently discovered ELMAH as an error logging module for ASP.NET, and now I wonder: what other killer modules do I know of? What is your favorite / indispensable ASP.NET module / handler? (I work in ASP.NET 2.0, so please indicate version compatibility!)

Answer 1

There is a good selection of modules: http://www.iis.net/downloads (mainly IIS7 modules)

My favorite is probably the streaming module, which limits bandwidth after an intuitive burst of data, optimizing the transmission of progressive downloads: http://www.iis.net/media .

As for IIS6, SAFileup was useful for allowing large file transfers by splitting files onto a disk rather than loading data into memory (ISAPI + .net Module plugin). However, this is a commercial product, and I think they can be free or cheaper alternatives these days.

There are also several dynamic image resizing modules that are extremely useful.