[WiX-users] Command Line Parameters to Deferred Custom Action on Vista

Hi, I am developing a WiX installer for Vista. I have a requirement to send some command line parameters to a Deferred Cusom action. My inital attempts to send the parameters using public property as follows have failed: I tried : msiexec /i myinstaller.msi CMDLINEPROPERTY="arg1 arg2 arg3" But t

[WiX-users] How to prevent downgrading when doing Minor Upgrade

Hi Is there a way iw WiX to prevent downgrade with minor upgrades. Can we write a custom action to verify and compare installed product version. If yes, can someone suggest some Msi api's that can use in my VC++ custom action dll. Is there any other easier way to achieve this. Thanks, Rajesh