I'm doing a major upgrade which removes the previous install after the new and it works fine. The only problem is I don't want the upgrade to overwrite files for a particular feature. How do I do this?
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Major Upgrade
Started by
FPSStephen
, Jan 10 2002 20:49
1 reply to this topic
Ian Blake
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- Members
- 483 posts
Posted 11 January 2002 - 10:46
If the files are .exe with version the component will only be updated if the version has changed.
It the files do not have versions then the files will not be overwritten if the existing file modification date is later than the creation date. (It does not depend on the date of the new file).
However if your file updating functions in youer application do delete/rename old file, create completely new file then you have a problem beacuse the installer can not tell if it is modified or not.
A way around this is to put the file that must not be modified into a component then create a registry key as the 'keyfile' for the component. This component is only installed it the registry key is present so this file will not be updated.