Valentin I. Melamed wrote:
First I tried to preserve only the upgrade code between the versions
and to change the ProductCode and the PackageCode. This didn't work:
if you have 1.2.2 it would install the 1.2.3 from the new installer as
a separate product -- they both appear in Add/Remove Programs. Then I
preserved the ProductCode also but as expected the things did not get
any better: when trying to upgrade from 1.2.2 to the new 1.2.3 it gave
me the message that I have another version of the product and I should
uninstall first, naturally...
You want a major upgrade to handle the 1.2.2 -> 1.2.3 case. (See
http://www.tramontana.co.hu/wix/lesson4.php for a tutorial on the
Upgrade element.)
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