COMException: 80040154: Class not registered

Hi,

Sorry - another newbie question I'm sure...

It appears that when the product I am trying to interface to is installed,
the class does not get registered?  I am getting the following exception
when I try and create an Engine object:

org.jawin.COMException: 80040154: Class not registered

 at org.jawin.marshal.GenericStub.win32Invoke0(Native Method)
 at org.jawin.marshal.GenericStub.win32Invoke(GenericStub.java:152)
 at org.jawin.FuncPtr.invoke(FuncPtr.java:186)
 at org.jawin.FuncPtr.invoke(FuncPtr.java:205)
 at org.jawin.win32.Ole32.CoCreateInstance(Ole32.java:169)
 at org.jawin.COMPtr.<init>(COMPtr.java:134)
 at org.jawin.DispatchPtr.<init>(DispatchPtr.java:104)
 at com.lexmark.olympus.action.ocr.jawin.IEngine.<init>
(IEngine.java:55)
 at com.lexmark.olympus.action.ocr.OCR.go(OCR.java:27)
 at com.lexmark.olympus.action.ocr.OCRTest.testBarcodeRead
(OCRTest.java:44)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:324)
 at junit.framework.TestCase.runTest(TestCase.java:154)
 at junit.framework.TestCase.runBare(TestCase.java:127)
 at junit.framework.TestResult$1.protect(TestResult.java:106)
 at junit.framework.TestResult.runProtected(TestResult.java:124)
 at junit.framework.TestResult.run(TestResult.java:109)
 at junit.framework.TestCase.run(TestCase.java:118)
 at junit.framework.TestSuite.runTest(TestSuite.java:208)
 at junit.framework.TestSuite.run(TestSuite.java:203)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests
(RemoteTestRunner.java:421)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run
(RemoteTestRunner.java:305)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main
(RemoteTestRunner.java:186)

As I'm new to COM, I'm not sure what to do!  Does it have to be installed
before I can use Jawin stubs?  Can I call it another way?  I have looked
at some of the C++ samples supplied with the product, and they seem to
load the dll first, then call the GetEngineObject method (funnily enough
the one in my previous post) to create the Engine.

So, can I load the dll from Java and then use Jawin to call methods on
it?  I'm confused!

thanks for any clarification...

David