Use a Type 19 custom action instead, then you get a messagebox with your
text in it and the uninstall just exits.
Phil Wilson
________________________________
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of John
Lalande
Sent: Friday, January 26, 2007 10:22 AM
To: Bob Arnson
Cc: wix-users@lists.sourceforge.net
Subject: Re: [WiX-users] uninstall LaunchCondition
>You didn't answer my question -- you want the uninstall to be canceled;
>you just don't like the "fatal error" message, right?
That's correct, I don't like the "fatal error" message. And neither
does my supervisor.
I understand the solution you are proposing but that user experience is
actually worse. As a user, I would be very annoyed if the uninstall
simply stopped with the message "User
canceled installation" if I had not done anything to cancel it.
Currently, the user gets the launch condition message so they know what
went wrong and how to fix it. The annoying part is the fatal error
message that follows.
I think that I am going to have to tell my boss that we'll have to live
with the fatal error message. It is benign and the user knows what they
need to do to uninstall. It just looks sloppy.
Which leads me to wonder why launch conditions would ever be run on
uninstall if a failure in the ARP shows the fatal error message after
the launch condition message. They could be very useful but informing
the user of a non-existent fatal error is not very pleasant behavior.
John
On 1/26/07, Bob Arnson <[EMAIL PROTECTED]> wrote:
John Lalande wrote:
> I understand where they might be useful; that is why I am
using one.
> But my experiments show that a failing launch condition during
> uninstall from ARP always shows the fatal error message after
> displaying the launch condition message.
Correct, that's how ARP works. Uninstalling from ARP shows only
a basic
UI so if something fails, your MSI package can't display
authored UI. So
ARP shows a message based on the MSI error code. A failed launch
condition returns ERROR_INSTALL_FAILURE, which is "A fatal error
occurred during installation." That's why I suggested a CA that
returned
ERROR_INSTALL_USEREXIT, which presumably would show the message
"User
cancelled installation." ARP doesn't let you customize the
message
that's shown, for better or for worse.
You didn't answer my question -- you want the uninstall to be
canceled;
you just don't like the "fatal error" message, right?
> Which leads me to your suggestion regarding the custom action
that I
> run. I have it set such that the return value is ignored.
Don't set the continue attribute -- you want the return value to
be
acted on.
--
sig://boB
http://bobs.org
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