How to obtain the installed sotware in system ?

[lindpessoa]

I need a source code that returns the softwares installed in my computer. How can I make it using c++?

[Marc G]

You can use the following registry keys:
HKLM\Software\Microsoft\Windows\CurrentVersion\Uninstall
HKCU\Software\Microsoft\Windows\CurrentVersion\Uninstall
These two keys contains all the software on your system that can be uninstalled. Software that doesn't has an uninstaller will be more difficult to find.