Only few programs can work right after you copy them onto your HDD. The majority require you to create an installation by means of a software installer.

A lot of programs are distributed in a packed format.

Programmers who want to save time or customer support service costs you can choose to use an open source or commercial installation software.

Should you work with Windows system, there is a popular solution called Microsoft Windows Installer that helps developers install software.

IntstallShield and SetupBuilder are two more installation software solutions for Microsoft Windows platform.

All of them may make the so-called packages that can let you install software on any Windows system.

Not happy with commercial install creator applications? Those who prefer open source applications could check out Innosetup and some more solutions that may be obtained freely.

Today software becomes multisystem.

Making installation packages for various systems often requires quite a bit of effort on the part of developers.

If each setup creator for each platform be it Linux, Windows XP, Mac OS or a different system was developed separately, it would require additional workload,i.e. extra time in production and testing to assure a satisfactory experience to users.

Luckily, there are also cross-platform software installer programs.

Java programmers who prefer open source projects may go for Java install creator IzPack..

Talking of installers, we should also say a few words about their cousins, i.e. uninstallers.

In the past some applications contained no uninstallers, so some third-party uninstallers had to be used.

Nevertheless, nowadays most software solutions have solid uninstallers, therefore you need not think a lot about obtaining a different solution to erase stuff off your PC.

Still, even these days there might be use for 3rd party uninstallers.

One of the reasons for that is that a few programs prefer not to delete themselves completely leaving some features behind.

An additional difficulty that these programs can help with is deleting Trojan and spyware.

If the application you have just installed appears to demonstrate some unusual intentions, a 3rd party uninstaller could turn to be the thing you need.

Uninstallers often have some extra functionality such as handing cache memory and managing temporary files, and so on.



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