[This is preliminary documentation and subject to change.]
Your custom actions must return the following values. These return values determine the course for further execution. DLL and script actions return the full set of return values. EXE processes and the setting of directories from formatted text can only indicate success or failure return values.
| Return value | Description |
|---|---|
| ERROR_FUNCTION_NOT_CALLED | Action is not found. |
| ERROR_SUCCESS | Action is completed successfully. |
| ERROR_INSTALL_USEREXIT | User terminates the action during the action execution. |
| ERROR_INSTALL_FAILURE | Action fails. |
| ERROR_INSTALL_SUSPEND | User suspends the installation. |
| ERROR_MORE_DATA | Action skips remaining actions; not an error. |
| ERROR_INVALID_HANDLE_STATE | Installation session is not active. |
| ERROR_INVALID_DATA | Call to custom action fails. |
| ERROR_INVALID_HANDLE | Arguments are invalid. |
| ERROR_INVALID_PARAMETER | Arguments are invalid. |