2.2.5.8 InstallationImpact

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The InstallationImpact enumeration identifies the impact that installing an update has on a target computer.

Value

Name

Description

0

Normal

Specifies that installing or uninstalling the update will result in an impact to the target computer that is typical for most updates. The update does not qualify for the special impact ratings defined below.

1

Minor

Specifies that the update qualifies as a "zero service interruption" (ZSI) update. Installing or uninstalling a ZSI update results in a negligible impact on the system. This is the desired behavior for all updates. The update MUST meet stringent requirements to qualify for this rating, including but not limited to the following:

  • The update does not perform or require a reboot.

  • The update does not display a user interface.

  • The update installs/uninstalls successfully even if it affects an application or service that is currently in use.

2

RequiresExclusiveHandling

Specifies that installing or uninstalling the update has such a high impact to the system that it is required to be installed "exclusively". This means the update MUST be installed/uninstalled without combining it with other updates.