Hi,
>>- How does install works, i see i have the product GUID, the Version and the
>>UpgradeCode, how does the installer manages those attributes ?
Pretty well...
>>- How do i know if the user had the application installed and is upgrading or
>>reinstalling the same version ? (i want to be able to backup and >>restore
>>some files if that is the case)
You can condition certain fo your custom actions using 'INSTALLED' to execute
it only when the product is installed and 'NOT INSTALLED' to execute it when
the product isnt' installed. You might want to check this for a list of
available properties Windows Installer uses:
http://msdn2.microsoft.com/en-us/library/aa370905.aspx
>>- Is the previous version automatically uninstalled before installing a new
>>version, are the files that changed replaced, the new files overwrite >>the
>>old ones?
No. You need to specify <Upgrade> tag. Assuming your previous app had an
upgrade code, you specify which of the previous versions you want uninstalled
by using the OnlyDectect attribute with the value 'no'.
No problem,
Dacian
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