List of registry keys affecting IIS7 behavior
4. HKLM\System\CurrentControlSet\Services\WAS\Parameters\ConfigIsolationEnabled (REG_DWORD)
W3WP
14. HKLM\System\CurrentControlSet\Services\InetInfo\Parameters\MaxCachedFileSizeInMB (REG_DWORD)
19. HKLM\System\CurrentControlSet\Services\InetInfo\Parameters\FlushTokenCache (REG_DWORD)
22. HKLM\System\CurrentControlSet\Services\W3SVC\Parameters\EnableTraceMethod (REG_DWORD)
23. HKLM\System\CurrentControlSet\Services\InetInfo\Parameters\DigestPartialContextCacheTTL (REG_DWORD)
24. HKLM\System\CurrentControlSet\Services\InetInfo\Parameters\DigestContextCacheTTL (REG_DWORD)
26. HKLM\System\CurrentControlSet\Services\W3SVC\Parameters\ForwardServerEnvironmentBlock (REG_DWORD)
27. HKLM\System\CurrentControlSet\Services\W3SVC\Parameters\MaxConcurrentCgisExecuting (REG_DWORD)
28. HKLM\System\CurrentControlSet\Services\W3SVC\Parameters\DoNotKillCgiOnRequestEnd (REG_DWORD)
47. HKLM\Software\Microsoft\Inetmgr\Parameters\IncrementalSiteIDCreation (REG_DWORD)
50. HKLM\SOFTWARE\Microsoft\WebManagement\Server\RequiresWindowsCredentials (REG_DWORD)
51. HKLM\SOFTWARE\Microsoft\WebManagement\Server\EnableLogging (REG_DWORD)
W3TP (Keys affecting thread pool manager used by WAS and worker process)
57. HKLM\System\CurrentControlSet\Services\InetInfo\Parameters\MaxPoolThreads (REG_DWORD)
62. HKLM\System\CurrentControlSet\Services\InetInfo\Parameters\ThreadPoolStartDelay (REG_DWORD)
63. HKLM\System\CurrentControlSet\Services\InetInfo\Parameters\ThreadPoolExactThreadCount (REG_DWORD)
64. HKLM\System\CurrentControlSet\Services\InetInfo\Parameters\MaxConcurrency (REG_DWORD)