|
Apply Patch
This command applies a patch to a product that has been previously installed on the target system. This command is valid only when the engine is active and is not supported by the .
This command must be used in conjunction with . A patch build scans the that have been added to your project, and generates differential patch data based on the delta of that scan. This data is then used by the Apply Patch command. If you attempt to use the Apply Patch command outside of a , the command will fail as the required differential patch data will be missing.
Return Success State in Variable
This variable holds the result of the installation action. The following values are returned:
| Value | Meaning |
|---|---|
| CANCEL | Installation was cancelled by the user. |
| COMPLETE | Installation was completed successfully. |
| ERROR | An error occured during installation. The error description is available in the LASTERROR variable. |
| REBOOT | Installation was completed successfully, however a reboot is required. |
Notes
- In wizard generated installs, the SUCCESS variable is used to hold the outcome of this command.