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! Function Name

Type the name of the function within the .DLL file to call.

! Parameter List

In the parameter list, specify the parameters to send to the .DLL.

! Return Value Type

Select the data type of the return value that is returned from the .DLL.

! Returned Property

Type or select a property name. The return value of the function call will be put into

this property.

Also see:

Guidelines for Calling .DLLs on page 502

Configuring .DLL Parameter Settings on page 510

Guidelines for Custom Action Location on page 499

Using the Custom Action Properties Tab on page 534

Using the Custom Action Location Tab on page 532

Call Custom DLL From Installation

This custom action stores a .DLL file in the Binary table of this installation file and calls it

during installation. Use this to call a .DLL that does not reside on the destination

computer. During installation, the .DLL is extracted to a temporary directory, is called,

and is deleted. It is not registered.

Tips

! You can send a variable parameter list to the .DLL.

! Manage the .DLL on the Resources page, which reflects the Binary table.

Note

Before being passed to Windows Installer, calls you make with Call Custom DLL actions are

passed through a Wise-created .DLL, which facilitates the passing of parameters.

Usage

Double-click the custom action and complete the Details tab:

! 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.

! DLL File

Specify a .DLL from your hard drive or local network to call during installation.