Cannot Compile java in Win NT

Can anyone help me?

I have a Windows NT 4.0 machine running JDK 1.2.2 and I have my class path & path set as follows:-

set path=c:\jdk1.2.2\bin;%PATH%

set classpath=.;C:\pat\Classes

Once setting these paths (via a Batch file, not Autoexec.bat though), I can run java files that I have successfully compiled on another machine, however I cannot compile any .java files I have created on the machine in question as this message occurs:-

error: Can't write: (name of file).class

1 Error

Before some tweaking I used to received this error :-

"Exception in thread "main" java.lang.NoClassDefFoundError sun/java/?

I have java successfully compiling & running on Windows 98 on another computer but cannot work this on out?

[799 byte] By [pr1981] at [2007-9-26 6:28:36]