New Post: how get msi code error.

in setup.cs file i use condition => new LaunchCondition(@"(Installed OR FLASH_CURRENT_VERSION)", "Flash Player is not installed.Please install Flash Player.")
and project property => new RegValueProperty("FLASH_CURRENT_VERSION", RegistryHive.LocalMachine, @"SOFTWARE\Wow6432Node\Macromedia\FlashPlayerActiveX", "Version")
This work when i run setup.msi. If the key is "SOFTWARE\Wow6432Node\Macromedia\FlashPlayerActiveX\Version" does not exist, I get message "Flash Player is not installed.Please install Flash Player."
but when I run MySetup.exe (custom UI with GenericSetup) it return error 1603. Рow to find value FLASH CURRENT_VERSION in MySetup?