Here I am facing issue during reinstallation of patch (says setup.exe). Below is the scenario -
There is product (suppose XYZ) that has been created using Wise Installer. Now I have to create another setup.exe using InstallShield X that just check if XYZ is installed then replace some of the files (dlls and exes) installed by this product XYZ by new version files (dlls and exes).
On first time installation using of setup.exe over installed product replaces the old version file perfectly. Now from Add/Remove program I uninstall the XYZ product. Then install the XYZ product again. Then I run patch ( setup.exe ) over it but this time patch (setup.exe ) is unable to replace the old version files of XYZ product by new version file.