[wix-users] Installing from a mapped network drive - Force it to use UNC?

Wed Sep 9 09:55:31 PDT 2015

WNetGetUniversalName is the underlying Win32 API for mapping a drive letter
to UNC:

https://msdn.microsoft.com/en-us/library/windows/desktop/aa385474(v=vs.85).a
spx

Is that what you looked at? 

You do need to be running as the interactive user that owns the drive letter
(impersonated doesn't count). 

Phil 

-----Original Message-----
From: wix-users [mailto:wix-users-bounces at lists.wixtoolset.org] On Behalf Of
Patterson, Brent
Sent: Wednesday, September 09, 2015 9:28 AM
To: WiX Toolset Users Mailing List
Subject: Re: [wix-users] Installing from a mapped network drive - Force it
to use UNC?

Thanks for all of your help, you've helped nudge me in the correct
direction!  I finally figured out.  What I need to do is to add this:

<ResolveSource Before="CostFinalize">NOT Installed</ResolveSource>

To the InstallExecuteSequence element.  It will set SourceDir to the UNC
path, not the mapped drive.  I figured it out when I looked at
InstallShield's ISM file, and it had a comment next to "ResolveSource"
saying "This must be done before calling MoveSource".  I missed this when I
looked through it before.

Now the issue I'm struggling with is doing the same thing for the burn
bundle.  I pass in the WixBundleOriginalSourceFolder value to MSI (which the
MSI then uses over SourceDir), but it points to the mapped drive.  I tried
looking up setting property values programmatically from C#, since C# has
function that would resolve the UNC path, but no luck so far.  Maybe I'm
using the wrong search terms?  Anyone have a handy link on how to do this?

-----Original Message-----
From: wix-users [mailto:wix-users-bounces at lists.wixtoolset.org] On Behalf Of
Hoover, Jacob
Sent: Wednesday, September 09, 2015 10:20 AM
To: WiX Toolset Users Mailing List
Subject: Re: [wix-users] Installing from a mapped network drive - Force it
to use UNC?

Are you testing your MSI without your bundle? Because Burn does it's best to
only elevate once, it's going to launch the per-machine MSI elevated (and
from the cached location) which will be too late for your CA too work.  As a
side note, from what I remember when looking at installshield MSI's, they
embed a bunch of vendor specific CA's which may be modifying the SourceDir.
Have you looked at your old MSI verbose log to see when SourceDir is being
assigned? 

-----Original Message-----
From: wix-users [mailto:wix-users-bounces at lists.wixtoolset.org] On Behalf Of
Patterson, Brent
Sent: Tuesday, September 08, 2015 5:42 PM
To: WiX Toolset Users Mailing List
Subject: Re: [wix-users] Installing from a mapped network drive - Force it
to use UNC?

Sorry, let me clarify.  The Installshield generates two files, the exe and
msi as part of build process.  The exe is our custom UI stuff, while MSI is
the basic windows installer.  I don't see how installshield can modify the
msi in ways that WiX can't.  Running the MSI directly without any parameters
passed in works for the installshield's MSI, but not the WiX's MSI, even
though both have same files, same custom action, etc, and run from the same
mapped network drive.  What am I missing?

I've opened up both MSI files in orca, and can't really find anything
obvious.  The installshield's had a lot more tables, and it defined Media
table, which WiX doesn't.  Is this important?  From what I understood, media
is used for when you keep some files on a media source such as a CD.  Does
this have any impact on installing from network drives?

-----Original Message-----
From: wix-users [mailto:wix-users-bounces at lists.wixtoolset.org] On Behalf Of
Carter Young
Sent: Tuesday, September 08, 2015 3:28 PM
To: WiX Toolset Users Mailing List
Subject: Re: [wix-users] Installing from a mapped network drive - Force it
to use UNC?

You're not thinking logically here.  Think of InstallShield, as another
version of a Burn Bootstrapper, as that's all it is... As a hunch, I would
guess that the InstallShield Bundle has the UNC hardcoded in the Package

On 09/08/2015 03:58 PM, Patterson, Brent wrote:
> It's a per-machine install, and I've left the default setting for
InstallPrivileges (not defining it, which should elevate it as per the tip).
It is started normally, without any arguments, I see a dialog box before it
elevates, so theoretically at some point it is still on the current user
account during the process before it elevates.  Do I need to change the
timing of the custom action that sets the SourceDir?
>
> This is the custom action that sets the values.  INSTALLLOCATION is set
from the burn bundle using WiXbundleOriginalSourceFolder property, if it's
defined, it's used instead of the sourcedir one:
>
> <CustomAction Id="SetFolders" Property="CopyFiles" Value=" 
> SourceFolder=[SourceDir];SourceFolder2=[INSTALLLOCATION]" 
> Execute="immediate" />
>
> And this is where it's called:
>
> <InstallExecuteSequence>
>       <Custom Action="SetFolders" After="CostFinalize">NOT
Installed</Custom>
>       ....
>
> While I can bundle the MSI and pass in UNC (I've already created a
bundle), we want to allow users the option of using either exe or msi.  So
MSI needs to be able to work without burn passing in values.  If the
Installshield's MSI can do it, why not WiX?
>
> Thanks again.
>
> -----Original Message-----
> From: wix-users [mailto:wix-users-bounces at lists.wixtoolset.org] On 
> Behalf Of Hoover, Jacob
> Sent: Tuesday, September 08, 2015 12:44 PM
> To: WiX Toolset Users Mailing List
> Subject: Re: [wix-users] Installing from a mapped network drive - Force it
to use UNC?
>
> Several things can complicate this... per-user vs per-machine, is there a
UI sequence (or is it a silent install), is it started as an elevated
process, etc.
>
> My biased opinion would be to bundle the MSI. From there, just pass 
> WixBundleOriginalSourceFolder to the MSI as a property. (Tested that 
> it works, even when elevated.)
>
> -----Original Message-----
> From: wix-users [mailto:wix-users-bounces at lists.wixtoolset.org] On 
> Behalf Of Patterson, Brent
> Sent: Tuesday, September 08, 2015 1:18 PM
> To: WiX Toolset Users Mailing List
> Subject: Re: [wix-users] Installing from a mapped network drive - Force it
to use UNC?
>
> Right, that's why I'm trying to get UNC (actual network path) for 
> SourceDir.  The Installshield MSI performs the same custom action, but 
> it works somehow.  I verified that it's using SourceDir.  So if that 
> MSI works, there must be something that I can configure for the WiX 
> MSI to work.  At least, that's my hope :)
>
> -----Original Message-----
> From: wix-users [mailto:wix-users-bounces at lists.wixtoolset.org] On 
> Behalf Of Phill Hogland
> Sent: Tuesday, September 08, 2015 12:03 PM
> To: WiX Toolset Users Mailing List
> Subject: Re: [wix-users] Installing from a mapped network drive - Force it
to use UNC?
>
> On Windows a mapped drive is defined in a particular user's profile, so if
the registry for the elevated user has not been configured to know about
that mapped drive, it won't do any good to try and generate a UNC (without
also having some way of getting the drive mapping from the other user's
registry profile).  I don't know of any setting that will address this issue
for you.
>
> -----Original Message-----
> From: wix-users [mailto:wix-users-bounces at lists.wixtoolset.org] On 
> Behalf Of Patterson, Brent
> Sent: Tuesday, September 08, 2015 12:51 PM
> To: wix-users at lists.wixtoolset.org
> Subject: [wix-users] Installing from a mapped network drive - Force it to
use UNC?
>
> Quick question:
>
> How do I set the MSI so it uses UNC instead of mapped drive when
installing?  I have a custom action that copies over a config file that uses
"SourceDir", but fails due to the MSI being elevated thereby not having
access to mapped drive.  Is there a simple way of configuring an option
somewhere to use UNC of a mapped drive?  I can't convert from mapped drive
to UNC in the custom action as it's too late, the user executing it is admin
and not the same user, even though I put "Impersonate='Yes'", so the
function fails.
>
> Thanks.
>
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