Web installers are getting more popular every day - you download just a small bit of installation and it pulls the remaining files from webserver.
But with all popularity, I couldn't find any installer that natively supports web install.
I'm using Inno Setup for several years now - but download support is very basic, you have to do everything manually. NSIS is also quite limited when it comes to downloading and installing files form the web.
Is there any installer that supports full-featured web installations?
InstallShield has extensive support for web installations.