# EnvUpdate

Notifies the OS and all running applications that environment variable(s) have changed.

EnvUpdate

#### ErrorLevel

ErrorLevel is set to 1 if there was a problem or 0 otherwise.

#### Remarks

Refreshes the OS environment. Similar effect as logging off and then on again.

For example, after making changes to the following registry key on Windows NT/2000/XP or later, EnvUpdate could be used to broadcast the change: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session
Manager\Environment

#### Related

EnvSet, RegWrite

#### Example

    EnvUpdate