Custom Action Type 53
This custom action is written in JScript, such as ECMA 262. Windows Installer does not support JScript 1.0. For more information, see Scripts.
Source
The Source field of the CustomAction table contains a property name or a key to the Property table for a property containing the script text.
Type Value
Include the following value in the Type column of the CustomAction table to specify the basic numeric type of a 32-bit custom action.
| Constants | Hexadecimal | Decimal |
|---|---|---|
| msidbCustomActionTypeJScript + msidbCustomActionTypeProperty | 0x035 | 53 |
Windows Installer may use 64-bit custom actions on 64-bit operating systems. A 64-bit custom action based on scripts must include the msidbCustomActionType64BitScript bit in its numeric type. For information see 64-bit Custom Actions. Include the following value in the Type column of the CustomAction table to specify the basic numeric type of a 64-bit custom action.
| Constants | Hexadecimal | Decimal |
|---|---|---|
| msidbCustomActionTypeJScript + msidbCustomActionTypeProperty + msidbCustomActionType64BitScript | 0x0001035 | 4149 |
Target
The Target field of the CustomAction table contains an optional script function. Processing first sends the script for parsing and then calls the optional script function.
Return Processing Options
Include optional flag bits in the Type column of the CustomAction table to specify return processing options. For a description of the options and the values, see Custom Action Return Processing Options.
Execution Scheduling Options
Include optional flag bits in the Type column of the CustomAction table to specify execution scheduling options. These options control the multiple execution of custom actions. For a description of the options, see Custom Action Execution Scheduling Options.
In-Script Execution Options
Include optional flag bits in the Type column of the CustomAction table to specify an in-script execution option. These options copy the action code into the execution, rollback, or commit script. For a description of the options, see Custom Action In-Script Execution Options.
Return Values
Optional functions written in script must return one of the values described in Return Values of JScript and VBScript Custom Actions.
Remarks
A custom action that is written in JScript requires the installation Session object. Because the Session object may not exist during an installation rollback, a deferred custom action written in script uses one of the methods described in Obtaining Context Information for Deferred Execution Custom Actions.
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