Imagine carrying your software on the same flash drive that carries your files. That’s what you can do with a U3 smart drive. You can plug it into any PC and work, play a game, message friends, send email, edit photos and more. A U3 smart drive makes any PC your own PC. And when you unplug it, it leaves no personal data behind.
U3 LLC is a joint venture that is backed by Sandisk and its subdsidiary, M-Systems. U3 is responsible for the development of a proprietary application design specification created for Microsoft Windows operating systems so that applications can be executed directly from a specially formatted USB flash drive. Applications are allowed to write files or registry information to the host computer, but this information must be removed when the flash drive is ejected.
USB flash drives adhering to the U3 specification are termed "U3 smart drives" by U3.com. "U3 smart drives" differ from traditional USB flash drives because they come preinstalled with the U3 Launchpad, which emulates the Windows OS start menu, and controls program installation.
USB flash drives adhering to the U3 specification are termed "U3 smart drives" by U3.com. "U3 smart drives" differ from traditional USB flash drives because they come preinstalled with the U3 Launchpad, which emulates the Windows OS start menu, and controls program installation.
U3 Launchpad
U3 Launch Pad, From a Geek Squad Flash Drive
The U3 Launchpad is a program manager that is preinstalled on every U3 smart drive, and is set to autoplay on insertion. A partition with the U3 Launchpad pretends to be a CD/DVD-ROM device in order to add USB mass storage device autoplay functionality on pre-Windows XP SP2 systems, or systems whose USB autoplay has been intentionally disabled.
The program is made to work with Windows 2000 Service Pack 4 and above. No Launchpad program exists for the Mac OS or Linux platforms.
The U3 Launchpad is a program manager that is preinstalled on every U3 smart drive, and is set to autoplay on insertion. A partition with the U3 Launchpad pretends to be a CD/DVD-ROM device in order to add USB mass storage device autoplay functionality on pre-Windows XP SP2 systems, or systems whose USB autoplay has been intentionally disabled.
The program is made to work with Windows 2000 Service Pack 4 and above. No Launchpad program exists for the Mac OS or Linux platforms.
U3 applications
To be fully U3 compliant, an application has to be programmed to clean up its own data from the local machine. It must also be packaged in U3's special program format. U3 applications will only run from a U3 device.
Hardware
U3 smart drives are traditional USB flash drives with a specific setup:
+Disk Management shows two drives; one emulates a read-only CD drive -- an ISO 9660 partition with the autorun and LaunchPad, and the other drive has a traditional FAT partition that includes a hidden SYSTEM folder with your installed applications.
+Optional: U3 Compliant Applications Preloaded
Compatibility
The U3 Launchpad and U3 Applications runs on Windows 2000 SP4+, XP or newer. U3 will work with Windows Vista as of version 1.4 of the U3 Launchpad. Data will continue to be accessible from any OS capable of reading from USB Mass Storage Devices, unless the U3 device is password-protected.
If the OS in question can normally see ordinary USB flash drives, then the U3 smart drive removable mass storage area (domain) should still be available for standard file system activities unless it is a private area protected by a password."
The U3 Launchpad and U3 applications present on two separate SanDisk Titanium 2GB worked on 2 separate Vista RTM installations with no issues. However, a SanDisk Cruzer Micro 4GB did not function on these same systems, the problem stems from the device driver for the virtual CD being unable to start. This is a driver issue for some of the devices and it is just a matter of time before it is resolved.
The U3 Launchpad and U3 applications present on two separate SanDisk Titanium 2GB worked on 2 separate Vista RTM installations with no issues. However, a SanDisk Cruzer Micro 4GB did not function on these same systems, the problem stems from the device driver for the virtual CD being unable to start. This is a driver issue for some of the devices and it is just a matter of time before it is resolved.