diff --git a/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/wizards/AbstractCWizard.java b/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/wizards/AbstractCWizard.java
index fd3e54c55ca..3e47920b366 100644
--- a/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/wizards/AbstractCWizard.java
+++ b/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/wizards/AbstractCWizard.java
@@ -11,12 +11,12 @@
 package org.eclipse.cdt.managedbuilder.ui.wizards;
 
 import org.eclipse.cdt.internal.ui.CPluginImages;
+import org.eclipse.cdt.internal.ui.wizards.ICDTCommonProjectWizard;
 import org.eclipse.cdt.managedbuilder.core.IInputType;
 import org.eclipse.cdt.managedbuilder.core.ITool;
 import org.eclipse.cdt.managedbuilder.core.IToolChain;
 import org.eclipse.cdt.managedbuilder.core.ManagedBuildManager;
 import org.eclipse.cdt.managedbuilder.ui.properties.ManagedBuilderUIImages;
-import org.eclipse.cdt.ui.wizards.CDTCommonProjectWizard;
 import org.eclipse.cdt.ui.wizards.CNewWizard;
 import org.eclipse.cdt.ui.wizards.IWizardItemsListListener;
 import org.eclipse.jface.wizard.IWizard;
@@ -70,11 +70,11 @@ public abstract class AbstractCWizard extends CNewWizard {
 	protected boolean isLanguageCompatible(IToolChain tc, IWizard w) {
 		if (w == null) 
 			return true;
-		if (!(w instanceof CDTCommonProjectWizard))
+		if (!(w instanceof ICDTCommonProjectWizard))
 			return true;
 
 		ITool[] tools = tc.getTools(); 
-		CDTCommonProjectWizard wz = (CDTCommonProjectWizard)w;
+		ICDTCommonProjectWizard wz = (ICDTCommonProjectWizard)w;
 		String[] langIDs = wz.getLanguageIDs(); 
 		String[] ctypeIDs = wz.getContentTypeIDs();
 		String[] exts = wz.getExtensions();
diff --git a/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/wizards/CDTConfigWizardPage.java b/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/wizards/CDTConfigWizardPage.java
index 2380bef6cbb..882047fa05e 100644
--- a/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/wizards/CDTConfigWizardPage.java
+++ b/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/wizards/CDTConfigWizardPage.java
@@ -13,13 +13,13 @@ package org.eclipse.cdt.managedbuilder.ui.wizards;
 import java.util.ArrayList;
 import java.util.Arrays;
 
+import org.eclipse.cdt.internal.ui.wizards.ICDTCommonProjectWizard;
 import org.eclipse.cdt.managedbuilder.core.IProjectType;
 import org.eclipse.cdt.managedbuilder.core.IToolChain;
 import org.eclipse.cdt.managedbuilder.core.ManagedBuildManager;
 import org.eclipse.cdt.managedbuilder.ui.properties.ManagedBuilderUIImages;
 import org.eclipse.cdt.ui.newui.CDTPrefUtil;
 import org.eclipse.cdt.ui.newui.UIMessages;
-import org.eclipse.cdt.ui.wizards.CDTCommonProjectWizard;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.jface.viewers.CheckStateChangedEvent;
 import org.eclipse.jface.viewers.CheckboxTableViewer;
@@ -309,8 +309,8 @@ public class CDTConfigWizardPage extends WizardPage {
 	 * Edit properties
 	 */
 	private void advancedDialog() {
-		if (getWizard() instanceof CDTCommonProjectWizard) {
-			CDTCommonProjectWizard nmWizard = (CDTCommonProjectWizard)getWizard();
+		if (getWizard() instanceof ICDTCommonProjectWizard) {
+			ICDTCommonProjectWizard nmWizard = (ICDTCommonProjectWizard)getWizard();
 			IProject newProject = nmWizard.getProject(true, false);
 			if (newProject != null) {
 				boolean oldManage = CDTPrefUtil.getBool(CDTPrefUtil.KEY_NOMNG);
diff --git a/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/wizards/MBSWizardHandler.java b/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/wizards/MBSWizardHandler.java
index 51e97e6e93a..0257f2c252b 100644
--- a/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/wizards/MBSWizardHandler.java
+++ b/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/wizards/MBSWizardHandler.java
@@ -29,6 +29,7 @@ import org.eclipse.cdt.core.settings.model.ICProjectDescription;
 import org.eclipse.cdt.core.settings.model.ICProjectDescriptionManager;
 import org.eclipse.cdt.core.settings.model.extension.CConfigurationData;
 import org.eclipse.cdt.core.templateengine.process.ProcessFailureException;
+import org.eclipse.cdt.internal.ui.wizards.ICDTCommonProjectWizard;
 import org.eclipse.cdt.managedbuilder.buildproperties.IBuildProperty;
 import org.eclipse.cdt.managedbuilder.buildproperties.IBuildPropertyValue;
 import org.eclipse.cdt.managedbuilder.core.BuildException;
@@ -48,7 +49,6 @@ import org.eclipse.cdt.ui.templateengine.Template;
 import org.eclipse.cdt.ui.templateengine.TemplateEngineUI;
 import org.eclipse.cdt.ui.templateengine.TemplateEngineUIUtil;
 import org.eclipse.cdt.ui.templateengine.pages.UIWizardPage;
-import org.eclipse.cdt.ui.wizards.CDTCommonProjectWizard;
 import org.eclipse.cdt.ui.wizards.CDTMainWizardPage;
 import org.eclipse.cdt.ui.wizards.CWizardHandler;
 import org.eclipse.cdt.ui.wizards.EntryDescriptor;
@@ -166,8 +166,8 @@ public class MBSWizardHandler extends CWizardHandler {
 						path.length > 1 && (!path[0].equals(ManagedBuildWizard.OTHERS_LABEL))){
 					templateId = path[path.length - 1]; 
 					Template templates[] = null; 
-					if(wizard instanceof CDTCommonProjectWizard) {
-						CDTCommonProjectWizard wz = (CDTCommonProjectWizard)wizard;
+					if(wizard instanceof ICDTCommonProjectWizard) {
+						ICDTCommonProjectWizard wz = (ICDTCommonProjectWizard)wizard;
 						String[] langIDs = wz.getLanguageIDs();
 						if(langIDs.length > 0) {
 							List<Template> lstTemplates = new ArrayList<Template>();
@@ -421,10 +421,10 @@ public class MBSWizardHandler extends CWizardHandler {
 	}
 	
 	private void loadCustomPages() {
-		if (! (getWizard() instanceof CDTCommonProjectWizard)) 
+		if (! (getWizard() instanceof ICDTCommonProjectWizard)) 
 			return; // not probable 
 		
-		CDTCommonProjectWizard wz = (CDTCommonProjectWizard)getWizard();
+		ICDTCommonProjectWizard wz = (ICDTCommonProjectWizard)getWizard();
 		
 		if (customPages == null) {
 			MBSCustomPageManager.init();
@@ -447,7 +447,7 @@ public class MBSWizardHandler extends CWizardHandler {
 		setCustomPagesFilter(wz);
 	}
 
-	private void setCustomPagesFilter(CDTCommonProjectWizard wz) {
+	private void setCustomPagesFilter(ICDTCommonProjectWizard wz) {
 		String[] natures = wz.getNatures();
 		if (natures == null || natures.length == 0)
 			MBSCustomPageManager.addPageProperty(MBSCustomPageManager.PAGE_ID, MBSCustomPageManager.NATURE, null);
diff --git a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/wizards/ICDTCommonProjectWizard.java b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/wizards/ICDTCommonProjectWizard.java
new file mode 100644
index 00000000000..29df3601c66
--- /dev/null
+++ b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/wizards/ICDTCommonProjectWizard.java
@@ -0,0 +1,113 @@
+/*******************************************************************************
+ * Copyright (c) 2009 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *******************************************************************************/
+package org.eclipse.cdt.internal.ui.wizards;
+
+
+import java.net.URI;
+
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IConfigurationElement;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.jface.wizard.IWizard;
+import org.eclipse.ui.wizards.newresource.BasicNewProjectResourceWizard;
+
+/**
+ * @since 5.1
+ */
+public interface ICDTCommonProjectWizard extends IWizard {
+	/**
+	 * First stage of creating the project but no progress displayed. Identical to 
+	 * calling createIProject(name, location, new NullProgressMonitor())
+	 * 
+	 * @param name name of the project
+	 * @param location location URI for the project
+	 * @return the project
+	 * @throws CoreException if project creation fails for any reason
+	 */
+	public IProject createIProject(final String name, final URI location) throws CoreException;
+
+	/**
+	 * First stage of creating the project. Only used internally.
+	 * 
+	 * @param name name of the project
+	 * @param location location URI for the project
+	 * @param monitor progress monitor
+	 * @return the project
+	 * @throws CoreException if project creation fails for any reason
+	 */
+	public IProject createIProject(final String name, final URI location, IProgressMonitor monitor) throws CoreException;
+	
+	/**
+	 * Get the file content types supported by this project
+	 * 
+	 * @return array of file content types
+	 */
+	public String[] getContentTypeIDs();
+
+	/**
+	 * Get the file extension specifications for each content type.
+	 * 
+	 * @return array of file extension specifications
+	 */
+	public String[] getExtensions();
+
+	/**
+	 * Get the languages supported by each content type
+	 * 
+	 * @return array of languages
+	 */
+	public String[] getLanguageIDs();
+		
+	/**
+	 * Return the last project created by the call to getProject().
+	 * 
+	 * @return the last project created
+	 */
+	public IProject getLastProject();
+
+	/**
+	 * Get the project natures provided by this project.
+	 * 
+	 * @return array of project natures
+	 */
+	public String[] getNatures();
+	
+	/**
+	 * Create and return the project specified by the wizard. Identical to calling
+	 * getProject(defaults, true)
+	 * 
+	 * @param defaults true if called from the first wizard page
+	 * @return the newly created project
+	 */
+	public IProject getProject(boolean defaults);
+	
+	/**
+	 * Create and return the project specified by the wizard.
+	 * 
+	 * @param defaults true if called from the first wizard page
+	 * @param onFinish true if the method is called when finish is pressed, false
+	 * otherwise. If onFinish is false, the project is temporary and can be removed
+	 * if cancel is pressed. 
+	 * @return the newly created project
+	 */
+	public IProject getProject(boolean defaults, boolean onFinish);
+	
+	/**
+	 * Can be used to pass a configuration element to update the perspective based 
+	 * on the current settings in the Workbench/Perspectives preference page via
+	 * {@link BasicNewProjectResourceWizard#updatePerspective(IConfigurationElement)}
+	 * 
+	 * @param config the configuration element
+	 * @param propertyName not used
+	 * @param data not used
+	 * @throws CoreException
+	 */
+	public void setInitializationData(IConfigurationElement config, String propertyName, Object data) throws CoreException;
+	
+}
diff --git a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/ui/wizards/CDTCommonProjectWizard.java b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/ui/wizards/CDTCommonProjectWizard.java
index 79afb440791..85681e6def4 100644
--- a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/ui/wizards/CDTCommonProjectWizard.java
+++ b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/ui/wizards/CDTCommonProjectWizard.java
@@ -52,8 +52,10 @@ import org.eclipse.cdt.core.settings.model.ICProjectDescriptionManager;
 import org.eclipse.cdt.ui.CUIPlugin;
 import org.eclipse.cdt.ui.newui.UIMessages;
 
+import org.eclipse.cdt.internal.ui.wizards.ICDTCommonProjectWizard;
+
 public abstract class CDTCommonProjectWizard extends BasicNewResourceWizard 
-implements IExecutableExtension, IWizardWithMemory  
+implements IExecutableExtension, IWizardWithMemory, ICDTCommonProjectWizard
 {
 	private static final String PREFIX= "CProjectWizard"; //$NON-NLS-1$
 	private static final String OP_ERROR= "CProjectWizard.op_error"; //$NON-NLS-1$
diff --git a/xlc/org.eclipse.cdt.managedbuilder.xlc.ui/src/org/eclipse/cdt/managedbuilder/xlc/ui/wizards/XLCSettingsWizardRunnable.java b/xlc/org.eclipse.cdt.managedbuilder.xlc.ui/src/org/eclipse/cdt/managedbuilder/xlc/ui/wizards/XLCSettingsWizardRunnable.java
index 84d6b703bc5..5a71a9d6a09 100644
--- a/xlc/org.eclipse.cdt.managedbuilder.xlc.ui/src/org/eclipse/cdt/managedbuilder/xlc/ui/wizards/XLCSettingsWizardRunnable.java
+++ b/xlc/org.eclipse.cdt.managedbuilder.xlc.ui/src/org/eclipse/cdt/managedbuilder/xlc/ui/wizards/XLCSettingsWizardRunnable.java
@@ -13,14 +13,15 @@ package org.eclipse.cdt.managedbuilder.xlc.ui.wizards;
 import java.lang.reflect.InvocationTargetException;
 
 import org.eclipse.cdt.core.CCorePlugin;
+import org.eclipse.cdt.internal.ui.wizards.ICDTCommonProjectWizard;
 import org.eclipse.cdt.managedbuilder.ui.wizards.MBSCustomPageManager;
 import org.eclipse.cdt.managedbuilder.xlc.ui.preferences.PreferenceConstants;
-import org.eclipse.cdt.ui.wizards.CDTCommonProjectWizard;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.QualifiedName;
 import org.eclipse.jface.operation.IRunnableWithProgress;
+import org.eclipse.jface.wizard.IWizard;
 import org.eclipse.jface.wizard.IWizardPage;
 
 /**
@@ -44,7 +45,7 @@ public class XLCSettingsWizardRunnable implements IRunnableWithProgress {
 		
 		if(pages != null && pages.length > 0) {
 		
-			CDTCommonProjectWizard wizard = (CDTCommonProjectWizard) pages[0].getWizard();
+			ICDTCommonProjectWizard wizard = (ICDTCommonProjectWizard) pages[0].getWizard();
 			IProject project = wizard.getLastProject();
 			
 			try {