anchor.diff:              Manufacturer=\"@Product.Publisher@\"
               UpgradeCode=\"@Product.UpgradeGuid@\"
               >
  -        
  +            
  +            @Product.MajorUpgrade@
  +
  +            @Product.Upgrade@
  +
               <!-- Auto Increment Package Id for every release -->
               <Package
                 Id=\"*\"
  
positive.code:         "@Product.Variables@", parameters.WiXVariables
          "@Product.Publisher@", parameters.ProductPublisher
          "@Product.UpgradeGuid@", parameters.UpgradeGuid.ToString("D")
          "@Product.Directories@", parameters.Directories
          "@Product.Features@", parameters.Features
          "@Product.CustomActions@", parameters.CustomActions
  
negative.code:         ProductVersion : string
          ProductPublisher : string
          UpgradeGuid : Guid
          Upgrade : string
          MajorUpgrade : string
          UIRefs : string
          WiXVariables : string
          Directories : string
  