iis - Same application started in multiple app pools -

i expierienced in iis can't understand, , i'm hoping else might :) ?

i have 1 site in iis, multiple applications. of them configured serviceautostartprovider, , set this:

-production (site, points c:\prod)    * app1 (uses apppool 1, points c:\prod\app1)    * app2 (uses apppool 2, points c:\prod\app2)    * app3 (uses apppool 3, points c:\prod\app3) 

the applications mapped different paths on disk (like above), , applications have different assemblies in /bin folder. have nothing in common except "common" .net assemblies autostartprovider.

once deployed app3, see started automaticaly (since it's configured autostartprovider), booted twice!?

once in apppool3 (as expected) , once in apppool1.

i see in logs since autostartprovider reads appsetting (the applications name) web.config , log's w3wp processid. in other words, logs showed:

"booted app3, processid: {apppool3's id}" "booted app3, processid: {apppool1's id}" 

how can happen? missing obvious? i've verified app3 files/assemblies didnt end in path app1 mistake..

this seems confirmed bug in iis, see following kb:

some services preloaded unexpectedly on iis server in windows kb2672277