User:Wizou

I'm the author of

I also have extensive knowledge around creating full-featured professional installers using NSIS.

This includes :

Offer the user to uninstall the previous installation of the application before continuing
Exiting running instance of application before (un)installation
Switching gracefully to administrator rights (eventually asking user for credentials) before continuing installation (under 2000,XP,Vista)
Deal gracefully with Vista UAC and large installers that usually slows down Windows Vista
Running the program under logged user account (not administrator) at the end of installation
Detecting the presence and installing MS Visual CRT libraries, DirectX, Windows Installer (through their MSI/MSM package)
Have a semi-automatic installation display on some command line switch (only show a progress bar in this case)
Register application with Windows Firewall
Running console process hidden during installation
Check for Windows versions compatibility before installation
Automatic generation of a NSH header by extracting Version Information from EXE files, useful for generating "Add/Remove program" and Installer Version information
Tweaking the MUI finish page, or some custom page to download more stuff over Internet during installation

and much more NSIS installers tweaking to make them more user-friendly...

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