XmlFile is a little under powered. You want XmlConfig instead.

2011/8/2 Alexander Krivács Schrøder <alexander.schro...@mermaid.no>

> Hey.
>
> I have a question regarding the XmlFile element. In my installer, I'm using
> it to modify a Unity configuration in an existing installation of another
> program (I'm replacing one plug-in with another). The way I'm doing it looks
> like so:
>
>        <util:XmlFile Permanent="no" Id="SetPlugin" Action="setValue"
> File="[OTHERPROGLOCATION]\OtherProg.exe.config"
>
> ElementPath="/configuration/unity/container/register[\[]@type='OtherProg.IPlugin'[\]]"
>  Name="mapTo"
>             Value="MyProg.MyPlugin, MyProg, Version=1.0.0.0,
> Culture=neutral, PublicKeyToken=abcdef12345678900" />
>
> However, on uninstall, the value is not returned to its original state, as
> one would expect from setting Permanent="no" on the element. The
> documentation claims "Specifies whether or not the modification should be
> removed on uninstall." Yet, after uninstallation, the value of that field is
> still "MyProg.MyPlugin, MyProg, Version=1.0.0.0, Culture=neutral,
> PublicKeyToken=abcdef12345678900", not whatever it was before the
> installation took place.
>
> Is this expected behavior? Am I missing a setting somewhere; is setting
> Permanent="no" not enough? Help would be appreciated.
>
> Best regards
>
> ALEXANDER K. SCHRØDER
>
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virtually, Rob Mensching - http://RobMensching.com LLC
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