On Windows you use a component called a "pluggable protocol handler" to
implement the logic for new protocols. Lots
of info can be found at:

<http://msdn.microsoft.com/library/default.asp?url=/workshop/networking/pluggabl\
e/pluggable.asp>

Mozilla uses a similar component-based system:

<http://www.mozilla.org/projects/netlib/new-handler.html>

And it looks like the Mac does it too:

<http://www.osxfaq.com/tips/brieck/index.ws>
<http://www.lub.lu.se/~mattias/mailnews/3mc4.htm#1031453>

Jeff;

>>How does that work in a cross platform way? i.e., how does an aggregator
>>that runs on Windows, Linux, mac (etc) deal with this?
>
>
> How do mail clients on those platforms handle mailto? Seems like the answer
> to that should answer the aggregator question.
>
> -Derek
>
>
>
> http://groups.yahoo.com/groups/aggregators
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>