For my installation I need to define the existence of any version of other product ( I know the Upgrade code of this product ). Can I use for this purpose the Upgrade table? ( by inserting known Upgrade code into UpgradeCode column, 0.00.0000 into VersionMin column). Or this table is only for upgrade own products? Unfortunately, MSI documentation have not an answer... May be it is need to use AppSearch table in this case? But AppSearch looks for a file, not for product...
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About Upgrade table
Started by
MichaelU
, Feb 02 2002 12:19
4 replies to this topic
Stefan Krueger
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InstallSite.org
Posted 03 February 2002 - 09:06
You can use the upgarde table (you can leave the version number field empty if you want to detect any version). You should use the "detect only" flag, else the detected product will be uninstalled.
MichaelU
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Posted 03 February 2002 - 13:40
Thanks, Stefan!
I tried to do it. But this approach works only for first time
installation, but did not work for next launch of my installation...
I tried to do it. But this approach works only for first time
installation, but did not work for next launch of my installation...
Stefan Krueger
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InstallSite.org
Posted 04 February 2002 - 06:55
Yes, that's correct. The upgrade table is only processed if the product is not yet installed.
MichaelU
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Posted 04 February 2002 - 14:02
It is very strange... Why this table is processed only one time? I found a long way to resolve my problem (see start message) using AppSearch, ÑompLocator tables, but I believe, that most elegant way is to use Upgrade table. But if WinInstaller can only one time processing this table...