TimeSnapper can be run from a USB key directly. Just run the setup to your USB key and start TimeSnapper.exe from the USB drive.
TimeSnapper will automatically configure itself the first time you start it to save all data in a sub folder directly beneath the application directory.
- Make sure to shut down TimeSnapper before removing the USB key from your computer
If you want to install TimeSnapper but your IT department doesn't allow you to run an installation program (which affects the registry), then you can simply copy your "\Program Files\TimeSnapper\" installation from another computer (e.g. your home computer) to your work computer.
Once that is done, create a shortcut to timesnapper.exe to your Startup folder to automatically start it when Windows starts. You may want to add the "-a" to automatically start taking screenshots.