In­stalling isn’t the be all and end all of soft­ware. Check out http://— you’ll find a vast range of apps that run com­fort­ably from a USB stick with­out mark­ing your pre­cious PC even slightly. But what if your fa­vorite app doesn’t of­fer a por­ta­ble ver­sion? Most pro­grams can be made por­ta­ble us­ing Cameyo (, a sys­tem that uses the con­cept of a vir­tual ma­chine to pack­age up all the com­po­nents of an ap­pli­ca­tion into a sin­gle ex­e­cutable file, ei­ther on your desk­top or, ex­cel­lently, on­line. We’re not done with in­stall­ers en­tirely, how­ever; in or­der to cre­ate a Cameyo pack­age, you need to fire it up, run the in­staller, and tell it when the in­stal­la­tion has fin­ished. It de­tects the changes made to the filesys­tem, and swal­lows them into its own vir­tual en­vi­ron­ment. When you then run the app, it finds the files ex­actly where it ex­pects them to be, not even know­ing that it’s run­ning in vir­tual space.

Cameyo’s com­mit­ment to porta­bil­ity ex­tends be­yond USB sticks full of apps, though. You can run your stuff en­tirely on­line with its cloud host­ing ser­vice (ses­sion time is lim­ited if you’re a free user), or take ad­van­tage of its li­brary of por­ta­ble apps, all of which are ready to go in its on­line repos­i­tory. This is es­pe­cially use­ful if you’re us­ing a man­aged PC—at work, for ex­am­ple—where you might be de­nied ac­cess to soft­ware you need. Regis­ter your­self a Cameyo ac­count, head to the site, and (as long as your net­work ad­min­is­tra­tor isn’t wise to it) you gain vir­tual ac­cess to some of the best free apps out there. Noth­ing to in­stall, no trace left be­hind. It’s like you were never there at all.

Cameyo en­ables you to run full apps, such as Ce­les­tia, within a browser.

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