I am using visual studio set up project to create my msi Installer.My requirement is to create multiple instances of the application using this same installer without changing version number/product code.
Is there is any way to do it without using Wix/Installshield.
Sorry, if you want to use MSI and install multiple instances, you need instance Transforms (i.e. changing the Product Code)
http://msdn.microsoft.com/en-us/library/aa369528(v=VS.85).aspx
Why don’t you want to change the product code using and instance transform?