December 4th, 1987, IBM shipped the first version of its multitasking operating system, OS/2. IBM had developed the system as a way to free itself of MS-DOS, which Microsoft had designed and still owned: Microsoft would code OS/2 to IBM's design specifications. Far from freeing IBM from Microsoft's domination, OS/2 almost accelerated the process. IBM initially developed the program to run on the 286 processor, not the more powerful 386, which contributed to the system's failure to catch on with many businesses. Meanwhile, early versions of Windows continued to gain ground, and with the launch of Windows 3.0 in 1990, Microsoft quickly became the leader in operating systems.