description	ms.assetid	title	ms.topic	ms.date
Windows Installer functions that return data in a user provided–memory location should not be called with null as the value for the pointer.	f566c4a4-b90c-4d73-9d7f-f5b836630636	Passing null to Windows Installer Functions	article	05/31/2018

Passing null as the Argument of Windows Installer Functions

Windows Installer functions that return data in a user provided–memory location should not be called with null as the value for the pointer. These functions return a string or return data as integer pointers, but return inconsistent values when passing null as the value for the output argument.