Several free applications exist to install operating systems on so called virtual machines. This method provides a few benefits, for example the option to reset it whenever it is needed. It provides a great way of accessing operating systems either to test them or to run applications which would not run on the default operating [...]

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Sandboxie does what virtual machines such as VMware Player, Virtual Box and Microsoft Virtual Pc do with the difference that it works on the application level and not the operating system one. Instead of running a virtual operating system that makes it safe to try and test software it lets you run software in a sandbox on your current operating system with the same result. The normal process in an operating system is that applications can read and write date from the system.

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