this is the story:

Mircosoft added some non conformant features to java in MS J++.
that was against write once run any where of Java so,
sun took Microsoft to court and win the case.
judges forced Microsoft to pay some money to MS and took the right to develop any Java product (JVM, IDE)
so Microsoft created created .net and C# and made its visual  J products absolute.

<<<so don't search for it since it doesn't exist any more!!!!>>>

they made J# as a middle language on .Net for those trying to move.

there is a converter in MS Visual studio  2005 to convert from Java to C#, which you can use