Win4Lin makes it much easier to move into Linux without worries about replacement office suite software, or other practical consumer-oriented programs. Windows administration is also simplified under the new hybrid operating system. One could use programs such as tar' or cpio' to make a backup of the Windows directory. If Windows were to act erratically (unlikely as it may seem), or some software were to become corrupted, the Windows directory could be removed and reinstalled - all in few keystrokes.
One of Linux's greatest strengths in a networked environment is its remote management capabilities. Using Win4Lin, many of these same strengths could be extended to the Windows environment. Several Windows machines, for instance, could be set up instantaneously across a network (with a licence for each machine, naturally!). And, if there were problems with any given installation, the problem could be addressed across the network.
Win4Lin runs on top of Linux, so memory allocation and clean up is handled by Linux. Win4Lin can be used to limit or increase the level of physical or virtual memory to which Windows has access, thereby solving many problems encountered by Windows users with high-volume memory swapping once physical memory is depleted.
Moreover, since Win4Lin acts as a layer between the software and hardware levels of a PC, the stability of Windows is increased greatly. So, if a General Protection Fault occurs, Win4Lin simply reboots Windows - a sub-second recovery! In fact, since Windows runs in a virtual environment, it need never be rebooted.