> -----Original Message-----
> From: Nick Ball [mailto:nick.b...@grantadesign.com]
> 
> The problem I had is that management were very reluctant for me to spend
> the time getting up to speed with WiX. Setup is just copying a few files 
> right?
> How hard can it be?!? In reality we have many different configurations of the
> product, all of which must product a nice simple setup.msi.
> 

Even copying files correctly to support upgrade is not a very simple process. I 
assume your custom solution would keep a manifest of the files it installed 
becoming the previousVersionSet. Then there's the files the upgrade wants to 
install becoming the nextVersionSet. And we all know that Ops guys can and will 
change files on disk as they desire so there's a currentSet. Files you 
installed with previousVersionSet that need to be overwritten by files in 
nextVersionSet are generally easy to deal with. What if there is a file in 
currentSet that also exists in nextVersionSet but doesn't exist in 
previousVersionSet? In other words, the upgrade installer will overwrite a file 
that was "installed" by somebody else... We're getting into some very dangerous 
waters here and all we are doing is copying a few files... It turns out this 
can be very hard indeed!

Edwin G. Castro
Software Developer - Staff
Electronic Banking Services
Fiserv
Office: 503-746-0643
Fax: 503-617-0291
www.fiserv.com
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