写好一段代码，然后编译成功，运行就这样

Microsoft Windows XP [版本 5.1.2600]
(C) 版权所有 1985-2001 Microsoft Corp.

C:\Documents and Settings\lijing>d:

D:\>java Test
Registry key 'Software\JavaSoft\Java Runtime Environment\CurrentVersion'
has value '1.3', but '1.4' is required.
Error: could not find java.dll
Error: could not find Java 2 Runtime Environment.

到底什么意思？高手帮忙一下

我前两天还用的，可杀了一次毒就没用了，估计是中毒被杀去了，重新安装一下看看