Displaying Custom Dialogs

InstallShield 2026 » InstallScript Debugger

One common technical support issue is the failure of custom dialogs to be displayed. Building and debugging custom dialogs can be a sophisticated process, but you can often find the bug that prevents a custom dialog from being displayed by confirming that all of the following conditions are true:

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The DLL containing the dialog resides on the disk that you intend to ship.

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Your installation copies the DLL to the path and subfolder where your script expects to find it.

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The dialog that you are loading is in the DLL.

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You are using the correct ID to address the dialog if the dialog is in the DLL.