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Custom Action Type 53

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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.

Custom_Actions