Due to a settlement agreement in January 2001 that resolved a legal dispute with Sun Microsystems, as of January 2004 Microsoft will no longer be authorized to support the Microsoft® Java Virtual Machine (MSJVM). Microsoft will not be able to address potential security issues, nor will the company be able to make any product enhancements. In preparation for this change, Microsoft began phasing out the MSJVM in its products after the settlement was reached. Going forward, the MSJVM will not be included in any future Microsoft products.
Microsoft's top priority is to provide its customers a computing experience that is trustworthy. As part of that effort, the company is committed to helping customers end their MSJVM dependencies and move to alternate solutions.
News source: Bink
Download: Draft Version of the MSJVM Transition Guide (.pdf; 472 KB)