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Windows Process Activation Service

Default Description:

The Windows Process Activation Service (WAS) provides process activation, resource management and health management services for message-activated applications.

Additional Information:

This service is not installed by default. You can add or remove this service by heading to:

  • Head to Start
  • Select Control Panel
  • Select Programs
  • Select Programs and Features
  • Select Turn Windows Features on or off

Additional Reading:

  • None at this time

Discussion Topic Link:

Windows 7 Services Forum

Defaults Startup Type:

Windows 7 Starter: Not Installed (Manual, Started)
Windows 7 Home Basic: Not Installed (Manual, Started)
Windows 7 Home Premium: Not Installed (Manual, Started)
Windows 7 Professional: Not Installed (Manual, Started)
Windows 7 Ultimate: Not Installed (Manual, Started)
Windows 7 Enterprise: Not Installed (Manual, Started)

Other Settings:

Safe Setting: Not Installed

Service Names:

Service Name (registry): WAS

Display Name: Windows Process Activation Service

Default Path and Command Line Options:

C:\Windows\system32\svchost.exe -k iissvcs

Log On As:

Account: Local System account

Dependencies:

What service Windows Process Activation Service needs to function properly:

What other service require Windows Process Activation Service to function properly:

Registry Settings (.reg):

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\WAS]
"Type"=dword:00000020
"Start"=dword:00000003
"ErrorControl"=dword:00000001
"ImagePath"=hex(2):25,00,77,00,69,00,6e,00,64,00,69,00,72,00,25,00,5c,00,73,00,\
79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,73,00,76,00,63,00,68,00,6f,\
00,73,00,74,00,2e,00,65,00,78,00,65,00,20,00,2d,00,6b,00,20,00,69,00,69,00,\
73,00,73,00,76,00,63,00,73,00,00,00
"DisplayName"="@%windir%\\system32\\inetsrv\\iisres.dll,-30001"
"DependOnService"=hex(7):52,00,50,00,43,00,53,00,53,00,00,00,00,00
"ObjectName"="LocalSystem"
"Description"="@%windir%\\system32\\inetsrv\\iisres.dll,-30002"
"RequiredPrivileges"=hex(7):53,00,65,00,41,00,73,00,73,00,69,00,67,00,6e,00,50,\
00,72,00,69,00,6d,00,61,00,72,00,79,00,54,00,6f,00,6b,00,65,00,6e,00,50,00,\
72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,41,00,75,\
00,64,00,69,00,74,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,\
00,00,53,00,65,00,42,00,61,00,63,00,6b,00,75,00,70,00,50,00,72,00,69,00,76,\
00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,43,00,68,00,61,00,6e,00,\
67,00,65,00,4e,00,6f,00,74,00,69,00,66,00,79,00,50,00,72,00,69,00,76,00,69,\
00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,43,00,72,00,65,00,61,00,74,00,\
65,00,47,00,6c,00,6f,00,62,00,61,00,6c,00,50,00,72,00,69,00,76,00,69,00,6c,\
00,65,00,67,00,65,00,00,00,53,00,65,00,44,00,65,00,62,00,75,00,67,00,50,00,\
72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,49,00,6d,\
00,70,00,65,00,72,00,73,00,6f,00,6e,00,61,00,74,00,65,00,50,00,72,00,69,00,\
76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,49,00,6e,00,63,00,72,\
00,65,00,61,00,73,00,65,00,51,00,75,00,6f,00,74,00,61,00,50,00,72,00,69,00,\
76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,52,00,65,00,73,00,74,\
00,6f,00,72,00,65,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,\
00,00,53,00,65,00,54,00,63,00,62,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,\
00,67,00,65,00,00,00,00,00
"FailureCommand"="\"C:\\Windows\\system32\\iisreset.exe\" /start /fail=%1%"
"FailureActions"=hex:80,51,01,00,00,00,00,00,01,00,00,00,03,00,00,00,14,00,00,\
00,03,00,00,00,00,00,00,00,03,00,00,00,00,00,00,00,03,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\WAS\Parameters]
"MajorVersion"=dword:00000007
"MinorVersion"=dword:00000005
"AccessDeniedMessage"="Error: Access is Denied."
"InstallPath"=hex(2):25,00,77,00,69,00,6e,00,64,00,69,00,72,00,25,00,5c,00,73,\
00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,69,00,6e,00,65,00,74,00,\
73,00,72,00,76,00,00,00
"ServiceDll"=hex(2):25,00,77,00,69,00,6e,00,64,00,69,00,72,00,25,00,5c,00,73,\
00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,69,00,6e,00,65,00,74,00,\
73,00,72,00,76,00,5c,00,69,00,69,00,73,00,77,00,33,00,61,00,64,00,6d,00,2e,\
00,64,00,6c,00,6c,00,00,00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\WAS\Parameters\ListenerAdapters]