1 reply to this topic

[anagha]

Hello!
     I am working on a fairly stable and large installation package.  We have a new version of our product and I built an upgrade package from the old version to the new version.  The upgrade seems to work fine.  However, after upgrade if I use the Windows installer cleanup utility, I can see two entries for the product.  On uninstalling, all the files, the database, everything is left behind.  The upgrade code has only one row, I set the reinstallmode property to amusv.  I also took out the RemoveExistingProducts action from the sequence as I do not want to remove the database, just overwrite all the files.
How can I make the uninstall work?
Do I have to have the RemoveExistingProducts?
Can I ask the Remove ExistingProducts to only remove some things?

[Ian Blake]

Yes, you must use RemoveExistingProducts.  

If you have authored your installations properly the Database will not be removed because the component it belongs to is present in both instances of the product.