Computer Stuff

The classpath should contain the jar file or the path to the class files, like this:
C:\VSS\PLTS\webapps\pltsweb\WEB-INF\classes>\Sun\AppServer\jdk\bin\javac.exe -classpath c:\sun\appserver\lib\j2ee.jar;c:\vss\plts\webapps\pltsweb\web-inf\classes\;c:\oracle\ora92\jdbc\lib\classes12.zip com\plts\servlets\PLTSMain.java

Here we need to specify full path to the j2ee.jar, classes12.zip in the classpath; also we need to specify the path to any other class files.

One thing to note, the java servlet class is packed in j2ee.jar. You have to install j2ee to get it work