If you want use any software yo have to install it today i am going tell you one trick by which you can use software without installing it.
www.PortableApps.com is the world's most popular portable software solution allowing you to take your favorite software with you. A fully open source and free platform, it works on any portable storage device (USB flash drive, iPod, memory card, portable hard drive, etc) as well as local storage and cloud storage options. With millions of users all over the world and a full collection of open source software as well as compatible freeware and commercial software and partners in the software and hardware industry, PortableApps.com is the most complete solution for life on the go.
PortableApps.com was founded by John T. Haller, the developer behind numerous portable applications including "Portable Firefox" which started the portable software trend. We've been making software portable since March 2004. Today, Portable Apps team stands at nearly 100 developers, translators, application packagers, designers and release testers. Our goal is to centralize the knowledge and development of portable software efforts and build a single, open platform which any software or hardware developer can use.