Another classpath-package question

Question

I have two classes residing in a directory called Record, and both classes declarepackage Record;as their first line of code. The RecordObject class instantiates the DBConnector class, and will not compile unless I strip the package declarations off both classes. The compile error for RecordObject (when both classes have the package directive) is:
C:\jswdk-1.0.1\examples\WEB-INF\servlets\Record\RecordObj.java:9: cannot resolve symbol
symbol : class DBConnector
location: class Record.RecordObj
static DBConnector dbc;
^
C:\jswdk-1.0.1\examples\WEB-INF\servlets\Record\RecordObj.java:27: cannot resolve symbol
symbol : variable DBConnector
location: class Record.RecordObj
connection = DBConnector.getInstance().getConnection();
when only the RecordObject class has the package directive, the error is:
C:\jswdk-1.0.1\examples\WEB-INF\servlets\Record\RecordObj.java:9: cannot access DBConnector
bad class file: .\DBConnector.class
class file contains wrong class: Record.DBConnector
Please remove or make sure it appears in the correct subdirectory of the classpath.
static DBConnector dbc;
Following the recent classpath posts, I just changed my classpath, but this did not help the compilation:
C:\>set CLASSPATH=%CLASSPATH%;C:\jswdk-1.0.1\examples\WEB-INF\servlets;
^

Answer 1

This is even stranger:
When I enter "set" in the dos window that I set the classpath in, I see my setting. However, if I open a separate dos window and enter "set", there is no CLASSPATH entry at all.
When I try to compile my RecordObj class from the command line of the dos window with the classpath, all is fine. I had been compiling from Textpad before. But when I try to compile from the other dos shell, I get the same errors that TextPad showed me.
Could somebody explain how setting the CLASSPATH only sets it in one dos window, and not in the total environment? Thanks.