| Reference information | |
|---|---|
| Applies to | Windows Installer |
| External links | |
Public property that determines how Windows Installer performs system updates. It can be set to the following values:
| Value | Description |
|---|---|
| N | None: Run through the UI sequence and query the installation database, but do not make any actual changes to the target system. This may be useful for testing. |
| S | Script: Perform a regular (scripted) installation. |
| Usage | |
|---|---|
| How to set | You can set this variable to the desired default action, or leave it empty to perform the a normal scripted installation. Because this is a public property, you can also set it on the installer's command line. |
| How to use | Not normally used directly; Windows Installer uses it internally. |