很短的程序，请帮忙测试一下

<P>import com.esri.arcgis.datasourcesGDB.*;
import com.esri.arcgis.geodatabase.*;
import com.esri.arcgis.system.*;
import com.linar.jintegra.*;</P>
<P>public class EngineTest {
  public EngineTest() {
    IWorkspace iws = this.openSDEWorkspace("gislab","5252","sde","sde","","9");
  }</P>
<P>  public IWorkspace openSDEWorkspace(String Server, String Instance,
                                     String User,
                                     String Password, String Database,
                                     String version) {
    IWorkspace ws = null;
    try {
      IPropertySet pPropSet = new PropertySet();
      IWorkspaceFactory pSdeFact = new SdeWorkspaceFactory();</P>
<P>      pPropSet.setProperty("gislab", Server);
      pPropSet.setProperty("5252", Instance);
      pPropSet.setProperty("", Database);
      pPropSet.setProperty("sde", User);
      pPropSet.setProperty("sde", Password);
      pPropSet.setProperty("9", version);</P>
<P>      ws = pSdeFact.open(pPropSet, 0);
    }
    catch (Exception ex) {
      ex.printStackTrace();
    }
    return ws;
  }
  public static void main(String[] args) {
    new EngineTest();
  }
}</P>

<P>我这里总是报错。</P>
<P>AutomationException: 0x80040154 - Class not registered
 at com.linar.jintegra.bs.b(Unknown Source)
 at com.linar.jintegra.Rpc.a(Unknown Source)
 at com.linar.jintegra.bl.a(Unknown Source)
 at com.linar.jintegra.Dispatch.createDispatch(Unknown Source)
 at com.linar.jintegra.Dispatch.<init>(Unknown Source)
 at com.esri.arcgis.system.IPropertySetProxy.<init>(Unknown Source)
 at com.esri.arcgis.system.PropertySet.<init>(Unknown Source)
 at com.esri.arcgis.system.PropertySet.<init>(Unknown Source)
 at com.seagolden.app.EngineTest.openSDEWorkspace(EngineTest.java:19)
 at com.seagolden.app.EngineTest.<init>(EngineTest.java:10)
 at com.seagolden.app.EngineTest.main(EngineTest.java:37)</P>

<P>读取shp文件就不会出错。</P>