In short: when I install my newer msi package over an older existing install,
the old files are deleted but are not replaced with their newer versions. I
end up with all "overlapping files" gone, and only newly-added files remain.
For example:
Old WXS:
<Directory Id='folder_folder' Name='folder'>
<Component Id='folder' Guid='xxxx'>
<File Id='f1' Source='f1' />
<File Id='f2' Source='f2' />
<File Id='f3' Source='f3' />
</Component>
</Directory>
New WXS:
<Directory Id='folder_folder' Name='folder'>
<Component Id='folder' Guid='xxxx'>
<File Id='f1' Source='f1' />
<File Id='f2' Source='f2' />
<File Id='f3' Source='f3' />
<File Id='f4' Source='f4' />
<File Id='f5' Source='f5' />
</Component>
</Directory>
After installing new over old, my resulting folder only has f4 and f5... I've
lost f1 f2 f3.
I understand now that I probably shouldn't have done it this way... based on
what I'm reading it seems a component per file would have been the way to go
but it wasn't clear at the time of initial creation that this would be an
issue... didn't know to look for the solution of a problem I didn't know I had.
Anyway, I've read through a few similar threads and I honestly just don't get
what the easiest way out of my situation is. My "old" package has 30 or so
directory components with lots of files and directories under each component.
Of course now I have this "old" package installed in lots of customer
locations. My situation is further complicated by the fact that some customers
have modified some resources and I don't want my update to overwrite anything
they've changed by hand.
I've tried a few things, unsuccessfully:
1) tried simply changing the component Guid... no change in behavior... only
the new files result.
2) tried changing <RemoveExistingProducts After="InstallFinalize" /> to
<RemoveExistingProducts After="InstallInitialize" />... which resulted in me
getting all the files correctly, but customer-modified resources were gone.
3) tried adding <Property Id='REINSTALLMODE' Value='amus'/>... resulted in some
behavior I didn't understand where all the feature options were X'd out... but
selecting them to install still resulted in only new files.
4) tried making a component per file with all new Guids... that too resulted in
only the new files.
Am I missing something basic I hope? Any help appreciated in recovering from
this situation and making it easier in the future. Thanks.
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