New Post: Uninstall previous version of MSI befor installing a later one

Hi Oleg,

Thanks for your reply. I have managed to uninstall the previous version of MSI before installing the newer version by following the below steps.

1. Removing the Website from IIS
2. Stopping Window Service
3. Uninstalling Window Service
4. Removing the entry of MSI name from registry in order to remove it from the Control Panel
   

I am doing these steps in the event "static void Msi_BeforeInstall(SetupEventArgs e){} ". Then after these steps are complete the new MSI is getting installed. But after installation of the new MSI, the System/Server is rebooting automatically, though i have not written any code for this rebooting. Please suggest a work around. My client has done escalation for this. Thanks in advance.