I'm trying to create an nsis installer package for deploying software that uses pgsql and the pgsql-odbc driver I wish to un-install all previous versions of pgsql-odbc and install the latest version.
in testing when installing 8.03.0100 over the top of 8.01.0200 double clicking on the msi file- replaces/upgrades the driver to 8.03 .01.00 but leaves the add/remove programs entry
running upgrade.bat, completes but does not do anything ( msiexec /i psqlodbc.msi REINSTALLMODE=vamus REINSTALL=ALL /qr )
modifying upgrade.bat, upgrades drivers, does not remove add/remove programs entry ( msiexec /i psqlodbc.msi REINSTALLMODE=vamus /qr )
differently modifying upgrade.bat, does not install ( msiexec /i psqlodbc.msi REINSTALL=ALL /qr )
Is this desired functionality of the msi install? (i.e. do i have to manually somehow detect previously installed verions and uninstall them programatically) Or is the current msi supposed to detect and remove previous versions / overwrite previous version and remove the add/remove programs entry.
thanks for your help, sorry if what i am trying to do looks like a hack (sometimes things really are as they appear!)
