I am in the processing of moving from IS12 to Wix for a number of our
products. So far, things are going fairly well.
There is one issue, however. The install we have out in the field is
version 4.0.17. I have done a Wix installer that does a major upgrade to
4.0.20. Everything works fine -- the old product ID is uninstalled, and
the new one replaces it. I can verify this both through the logs and
through the actual changes to the filesystem and registry.
However, there is one remaining issue. It looks like a registry entry
from the original IS install is left in:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\InstallShield_{old-product
code}
This key while otherwise harmless, causes the Add/Remove programs panel
in control panel to show an entry for the old product version. Of
course, the old product can no longer be removed because it is no longer
installed. Removing this leftover uninstall key from the registry fixes
any issues.
My questions are these:
1) Am I doing something wrong on my major upgrade to cause this key to
not get removed?
2) If the answer to 1) is no, what would be the best way to go about
removing this entry? I already have a number of C++ custom actions, and
it would be fairly easy to add a new one to kill off that key if needed,
but is there a better way?
Thanx in advance -- mikey
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