Re: [WiX-users] UAC Prompt Required

[Mike D. <mi...@di...>]

>From Windows 2000 onwards, MDAC is part of the operating system, under
Windows File Protection, and can only be upgraded using an OS
update/hotfix-style package or by a service pack. The only supported method
of installation is to run MDAC_TYP.EXE.

There is no newer version of MDAC for Windows Vista.

Any merge module you find is likely to either simply have detection for
MDAC, contain custom actions to launch MDAC_TYP.EXE (BAD! - example at
http://support.microsoft.com/kb/320788), be an unauthorized repackaging
which is unlikely to work, or be an out-of-date version. I'd strongly
recommend launching MDAC_TYP.EXE from a bootstrapper application.

-- 
Mike Dimmick

-----Original Message-----
From: wix...@li...
[mailto:wix...@li...] On Behalf Of Bob Arnson
Sent: 26 April 2007 15:59
To: Gareth at Serif
Cc: wix...@li...
Subject: Re: [WiX-users] UAC Prompt Required

Gareth at Serif wrote:
> MSI_LUA: Credential prompt is not required at this point, product is
managed
> and deployment compliant
> Specifed source is already in a list.
>   

Take a look at 
http://blogs.msdn.com/rflaming/archive/2006/10/01/uac-in-msi-notes-is-this-i
ntentional-if-so-why.aspx:

Maintenance mode operations such as repair or feature state changes do 
not require credential prompts.

So that's working as designed. The question is why do the MDAC merge 
modules require elevation. Do you have them in a single feature? You 
should be able to then use VersionNT to disable the feature on Vista.

-- 
sig://boB
http://bobs.org



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