Installation File issue fixed required

I have an existing application with an installation routine that I provide to business customers to install on their PC. It currently installs on Windows XP - Windows 10 until the latest Windows 10 update 1703. Now, I need a new installer application that will identify the O/S for the target PC and run the current installation, plus duplicate a directory now installed in Program Files, to also be in Program Files (x86), and then change the shortcut on the desktop, if it is Windows 10's newest version or higher, and leave it to run alone without the additional installation if it is an older version. I would like this to be in InstallShield where a code signing certificate can be added so users will see the software as a trusted program when the run the installer. Is this within your scope? Need InstallShield. If so, please contact me. Must sign confidentiality agreement. Ready to begin right away.