[wix-users] How to ignore invalid/unavailable drive for an optional file/component?

Kerem keremispirli+wixtoolset at gmail.com
Tue Dec 5 00:53:37 PST 2017

Hello Jacob,
Thank you for your response. I did add a Condition that checks for
availability of that folder, but the only thing I achieved with it was that
the error message was more user friendly. The installation still failed
immediately when the dialog is closed.

Detecting and assigning properties during install time indeed sounds a bit
hard to manage.

I followed your recommendation and installed the file to the install
directory (that's what you mean by "locally", right?) and then copied it to
user home with a Custom Action. I couldn't get <CopyFile> working with it,
so I used <ExeCommand>.

<Product ...>
  <Package .../>
  <CustomAction Id='CopyFileCA' Execute='deferred' Return='ignore'
Directory='INSTALLDIR' ExeCommand='cmd /c "copy <filename>
    <Custom Action='CopyFileCA' Before='InstallFinalize'>
      NOT Installed
    <Custom Action='RemoveFileCA' Before='InstallFinalize'>

This solves my problem. But since it does it silently AND I am new to WiX,
I wonder if this can be done in a more "elegant" way. Or is this as good as
it gets in my situation?

Thank you for your support Jacob!

Best regards,
Kerem Ispirli

30 Kas 2017 Per, 17:32 tarihinde, Hoover, Jacob <Jacob.Hoover at greenheck.com>
şunu yazdı:

> Adding a Component/Condition element to the install, and a CA to detect
> and assign properties would allow you to avoid the message,  however then
> you need to deal with servicing the MSI in a different state than when the
> initial install was done.  Personally, I would install this file locally,
> and use a semi-custom action to copy the file @ install time if the drive
> exists and is accessible.
> File/@Vital='no' would allow you to continue if it failed.
> -----Original Message-----
> From: wix-users [mailto:wix-users-bounces at lists.wixtoolset.org] On Behalf
> Of Kerem via wix-users
> Sent: Thursday, November 30, 2017 6:48 AM
> To: wix-users at lists.wixtoolset.org
> Cc: Kerem <keremispirli+wixtoolset at gmail.com>
> Subject: [wix-users] How to ignore invalid/unavailable drive for an
> optional file/component?
> Hello all,
> First of all, apologies if this is asked before. I tried to search the
> archives, but search page doesn't work. I see a "Documents 1 - 10 of 41
> matches. More *'s indicate a better match." message and empty space under
> it. I tried with latest FireFox, Chrome, Edge and (gulp!) IE.
> I create my installer with WiX 3.10.3. My installer installs a file (which
> is optional) to user's home directory (%HOMEDRIVE%%HOMEPATH%). Recently,
> upon a user complaint, I discovered that:
> - If the %HOMEDRIVE% is a mapped network drive but it's disconnected, then
> the installer shows this error: "A network error occurred while attempting
> to read from the file: H:\..." and installer immediately fails.
> - If the %HOMEDRIVE% is a nonexistent drive, then the installer shows this
> error: "Invalid Drive B:\" and installer immediately fails.
> Now, I don't have anything in my .wxs file for doing these checks for
> availability of the drives. Apparently MSI is doing these checks
> automatically: These error messages correspond to errors 1316 and 1327 in
> Windows Installer Error Messages list(
> https://msdn.microsoft.com/en-us/library/windows/desktop/aa372835%28v=vs.85%29.aspx?f=255&MSPPError=-2147217396
> ).
> *My problem is that since this file is optional, I don't want these checks
> to be done for its path.* I couldn't find any documentation of this
> behaviour for neither Windows Installer nor WiX Toolset. Is there a way to
> disable those checks through WiX? Or any way at all?
> Even if this particular file cannot be installed I want the installer to
> skip it and continue. Showing an error screen with "Abort" and "Skip"
> options during installation would be ideal, but my Google-fu didn't cut it
> either.
> Note: I posted the same question to StackOverflow but not only there was
> no answer, it got so little attention that it earned me a Tumbleweed badge.
> In case you're interested:
> https://stackoverflow.com/questions/47413121/how-to-ignore-invalid-drive-for-an-optional-file-component
> Thank you in advance!
> Kerem Ispirli
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