Our application install scenario contains conditional pre-requisites.

What bootstrappers can do this today?

Basically, we want a bootstrapper that can support this scenario:

1A) If App1 is installed, install X1 (matching addon MSI package to
App1)
1B) If App1 is not installed, don't install X1
1C) If App1 and X1 are both installed already, do nothing (done already)
2)  Start our own application MSI installer

That is, App1 is not a pre-requisite for the bootstrapper, but if
installed its presence requires an additional pre-requisite component to
be installed.

I would want the bootstrapper to use a registry search to detect if
application App1 is installed and if so install the matching
pre-requisite.

1) dotNetInstaller
I've checked out the dotNetInstaller, which looks interesting. It seems
to be able to do everything we need, except for the above requirement.

dotNetInstaller has the InstalledCheck element, but can it be used for
this scenario? It seems to only support checking for the presence of the
very same component that is about to be installed. I can't see a way to
link a component to be conditionally installed based on the presence of
another component. Is there a way to make this work w dotNetInstaller?

2) Other bootstrapper options
Can Burn or .NET FW bootstrapper handle this scenario? Some other
alternative?

By the way, I know Burn is put on hold until 3.0 "ships", but what is
the current status of Burn as it exists now?

Ps. App1 is Excel v Xxxx and X1 is matching PIA v Xxxx.

/Mathias

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