I'm trying to figure out the meaning of Handler Mapping in IIS7.5 and how IIS use this information to decide who executes what.

For instance I see several entries with the *.aspx path. Which one wins? Could it be that some entries only applies when Classic Pipeline is enabled and some others when Integrated pipeline is used? And the bitness (32 bit, 64bit) influence which entries are considered?

If someone could explain (or have a link explaining) what IIS7.5 does (in terms of "dispatching"/"routing"/"you! take care of that!") when a generic HTTP request comes:

    GET /blabla/dummy.bla HTTP/1.1
    Host: blabla.org

Later on I would be interested in how the IIS Rewrite Module or ARR, works, but for now I'm only interested in the Handle Mapping configuration.

Thank in advance!

.net asp.net iis-7.5
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