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Service Unavailable again and again and again and again and again

I presume that the end result is eventually the same. With the application I did, the application pool is only restarted when needed though.
 
hi ditoh...it´s been 3 days and have no more problems with the wesites...

Reclycing in IIS every 5 or 20 minutes is also a good solution cause you prevent the site from going service unavailable than actually wait for it to happen before fixing it.
 
Windows 2003 has a limit of simultaneous applications pool.

Edit you register:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W3SVC\Parameters]

and add this key:

UseSharedWPDesktop

value (dword) = 00000001

It solved all our problems.
 
You can always delete the website and re-create it in Plesk.
That fixed my issue...
 
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