用Java来设计COM服务器一问？？？(5分)

根据《Thinking in Java》一书，我写了一个简单的class在windows2000professional上当COM服务器使用，类写好了：
public class COMServerKemble
{ private int addend;
private int result;
public void setAddend(int a){ addend = a;}
public int getAddend(){return result;}
public void sum(){result += addend;
}
public void clear(){
result = 0;
addend = 0;
}
}
模仿书上的做法，在win2000的命令行敲入：C:/>javareg /register /class:COMServerKemble /progid:JavaCOMServerKemble.COMServ
erKemble.1 /typelib:JavaCOMServerKemble.tlb
但是，结果说：'javareg' is not recognized as an internal or external command,
operable program or batch file.
请问，这个javareg执行文件是不是win2000自带的？？没有的话，去哪里有呢？？
多谢！！！！

You have to install Visual J++ first,
By the way, Ido
n't think java invoke COM object is a good idea. EJB is better