Data type Range Default value
REG_DWORD 0 - 4 There is no default value for this entry.


Specifies how the service is loaded or started. If the service is a Win32 service, the value of Start must be 2, 3, or 4. This entry is not used for network adapters.

Value Meaning
0 Boot: Loaded by kernel loader. Components of the driver stack for the boot (startup) volume must be loaded by the kernel loader.
1 System: Loaded by I/O subsystem. Specifies that the driver is loaded at kernel initialization.
2 Automatic: Loaded by Service Control Manager. Specifies that the service is loaded or started automatically.
3 Manual: Specifies that the service does not start until the user starts it manually, such as by using Device Manager.
4 Disabled: Specifies that the service should not be started.

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This information is presented for reference only. You cannot change the starting rules for a service by editing this entry. To change the value of Start, use the ChangeServiceConfig API or Sc.exe, a tool on the Windows 2000 Resource Kit.

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To determine what type of service is represented by the subkey, see Type.