unregister an .ocx in 'onbeforeinstall' event of Installer class then try to register it on install but couldnt done

问题

Hi ,

I tried to unregister and delete an .ocx & a .dll from the System32(XP 32 bit os)/SysWow64(64bit OS) of the machine using C# code. I had written the Unregister & Delete code in the override method OnBeforeInstall(IDictionary savedState) of installer class.When I tried to install the .msi the files(.ocx & .dll) get Unregistered, but at the install completes the new files not get registred ie its not present in the System32 folder.

Is the OnBeforeInstall event deletes the new files?

Please refer : http://www.experts-exchange.com/Programming/Installation/MSI/Q_23525069.html

http://www.tech-archive.net/Archive/DotNet/microsoft.public.dotnet.framework.setup/2004-09/0145.html

来源：https://stackoverflow.com/questions/6841423/unregister-an-ocx-in-onbeforeinstall-event-of-installer-class-then-try-to-reg