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I know this is a bit old, but just to add something to it. One solution would be to create additional Capture Groups in your Regular Expression for the url in the match element of the rule, so as to extract explicit parts of the URL. The Back Reference {R:0} will always be the entire string being tested, so you can obtain additional Back References by ...


After digging around a bit more and conferring again with the developers behind other, I think we've figured out this issue. Basically, the site hosting and all the applications under it that will be participating in the rewrite (common, as well as foo and bar until we are ready to delete them) need to be running in the same IIS app pool. I've ...

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