[quote user="Nenad Poljcic"]
99% users does not have rights to installl anything on PC. If you want to install something you have to send request to IT departmant.
[/quote]
This is quite common in modern organisations however, Jon suggested one particular type of installer, I have (limited) experience using Inno Setup. With this I was able to specify the install location to a custom folder within the root of the C:\, set the installer to not require Admin install rights and every user was able to install my application on machines which normally do not allow any installs.