Hi...
I'm looking to get my installer to appropriately set an entry
in one of those "tricky" environment variables, like %PATH%. By "tricky" I
mean shared and accretive - it's a multi-value crossroads that everybody and
their brother will be mucking with. I want to make sure our addition gets in
there but don't want to just keep appending our root every time the installer
is run. In the same vein, I can't just blank the variable when our product is
uninstalled.
So I was thinking I'd add a custom action type 51 to get the
value into a property and a conditionalized component with a test on the value,
but I'm not quite clear on how all the pieces would fit together... Something
like
<Component Id="SetPath">
<Condition><![CDATA[NOT EnvPath><C:\Program Files\Mypath;]]></Condition>
<Environment Id="EnvSetPath" Action="set" Name="PATH" Part="first"
Permanent="yes" System="yes" Value="C:\Program Files\MyPath" />
</Component>
...
<CustomAction Id="EnvPath" Property="EnvPath" Value="[%PATH]" />
Problem is that all the examples I'm cribbing from are using
ellipsis too, so I'm not sure if I have to declare what phase the custom action
will be executed in, etc.
Am I on the right track?
Thanks
Mark
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