Hi, I wish to use JBoss Drools rule Engine for evaluating Rules in my RCP Application based on Eclipse 3.2. I do this by extracting source files included in the Drools binary files. I get the follwing stacktrace: Unable to load dialect 'org.drools.rule.builder.dialect.java.JavaDialectConfiguration:java' at org.drools.compiler.PackageBuilderConfiguration.buildDialectRegistry(PackageBuilderConfiguration.java:138) at org.drools.compiler.PackageBuilderConfiguration.init(PackageBuilderConfiguration.java:114) at org.drools.compiler.PackageBuilderConfiguration. (PackageBuilderConfiguration.java:87) at org.drools.compiler.PackageBuilder. (PackageBuilder.java:122) at org.drools.compiler.PackageBuilder. (PackageBuilder.java:88) at my package.................................. caused by: java.lang.ClassNotFoundException: org.drools.rule.builder.dialect.java.JavaDialectConfiguration at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:402) at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:347) at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:83) at java.lang.ClassLoader.loadClass(Unknown Source) at org.drools.compiler.PackageBuilderConfiguration.buildDialectRegistry(PackageBuilderConfiguration.java:132) ... 50 more