Windows Installer Editor Reference
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Custom Action Reference
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Function Name
Type the name of the function within the .DLL file to call.
See also:
Guidelines for Calling .DLLs
on page 457
Guidelines for Custom Action Location
on page 454
Using the Custom Action Properties Tab
on page 490
Using the Custom Action Location Tab
on page 488
Custom Action Type 17 in the Windows Installer SDK Help
Call JScript From Embedded Code
This custom action runs JScript code that is embedded inside this custom action.
Tips
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The script is limited to 255 characters; use other JScript custom actions for longer
scripts.
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The destination computer must contain the script’s runtime.
Usage
Double-click the custom action and complete the Details tab:
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Custom Action Name
Enter a unique name that begins with a letter or underscore. It can contain numbers
and periods. It must not match the name of any Windows Installer standard action.
See Standard Actions Reference in the Windows Installer SDK Help.
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Run Script in Win64 Process
(64-bit installations only.) Mark this if the script needs to access 64-bit functionality
and run in a 64-bit process.
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Enter the JScript to execute
Type or paste the script text. Code elements, such as function names, declarations,
and values, are color-coded. You can use bracketed property names, table keys,
environment variable references, and other special substrings. See Formatted in the
Windows Installer SDK Help.
See also:
Guidelines for Calling VBScripts and JScripts
on page 456
Guidelines for Custom Action Location
on page 454
Using the Custom Action Properties Tab
on page 490
Using the Custom Action Location Tab
on page 488
Custom Action Type 37 in the Windows Installer SDK Help
Call JScript From Installation
This custom action stores a JScript file in the Binary table of this installation file and runs
it during installation. During installation, the JScript file is extracted to a temporary
directory, is run, and is deleted.