iis6的system.web
<system.web>
</httpModules>
<add name="..." type="..." />
</httpModules>
<httpHandlers>
<add verb="...." path="..." type="..." />
</httpHandlers>
</system.web>
iis7的system.web
system.webServer> </modules>
<add name="..." type="..." />
</modules>
<handlers accessPolicy="Read, Write, Script, Execute">
<add verb="...." name="..." path="..." type="..." />
</handlers>
</system.webServer>