diff --git a/proposal/myrmidon/src/java/org/apache/antlib/core/AntParam.java b/proposal/myrmidon/src/java/org/apache/antlib/core/AntParam.java
new file mode 100644
index 000000000..30a9a2206
--- /dev/null
+++ b/proposal/myrmidon/src/java/org/apache/antlib/core/AntParam.java
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) The Apache Software Foundation. All rights reserved.
+ *
+ * This software is published under the terms of the Apache Software License
+ * version 1.1, a copy of which has been included  with this distribution in
+ * the LICENSE.txt file.
+ */
+package org.apache.antlib.core;
+
+import org.apache.avalon.excalibur.i18n.ResourceManager;
+import org.apache.avalon.excalibur.i18n.Resources;
+import org.apache.myrmidon.api.TaskException;
+
+/**
+ * Simple holder for parameters.
+ *
+ * @author <a href="mailto:peter@apache.org">Peter Donald</a>
+ * @version $Revision$ $Date$
+ * @todo Refactor this and all the other parameter, sysproperty,
+ *   property etc into a single class in framework
+ */
+public class AntParam
+{
+    private final static Resources REZ =
+        ResourceManager.getPackageResources( AntParam.class );
+
+    private String m_name;
+    private Object m_value;
+
+    /**
+     * Set the name of the parameter.
+     *
+     * @param name the name of parameter
+     */
+    public void setName( final String name )
+    {
+        m_name = name;
+    }
+
+    /**
+     * Set the value of the parameter.
+     *
+     * @param value the parameter value
+     */
+    public void setValue( final Object value )
+    {
+        m_value = value;
+    }
+
+    /**
+     * Retrieve name of parameter.
+     *
+     * @return the name of parameter.
+     */
+    public String getName()
+    {
+        return m_name;
+    }
+
+    /**
+     * Retrieve the value of parameter.
+     *
+     * @return the value of parameter.
+     */
+    public Object getValue()
+    {
+        return m_value;
+    }
+
+    /**
+     * Make sure that neither the name or the value
+     * is null.
+     */
+    public void validate()
+        throws TaskException
+    {
+        if( null == m_name )
+        {
+            final String message = REZ.getString( "param.noname.error" );
+            throw new TaskException( message );
+        }
+        else if( null == m_value )
+        {
+            final String message =
+                REZ.getString( "param.novalue.error", m_name );
+            throw new TaskException( message );
+        }
+    }
+}
diff --git a/proposal/myrmidon/src/java/org/apache/antlib/core/AntTask.java b/proposal/myrmidon/src/java/org/apache/antlib/core/AntTask.java
new file mode 100644
index 000000000..c1c58fdcb
--- /dev/null
+++ b/proposal/myrmidon/src/java/org/apache/antlib/core/AntTask.java
@@ -0,0 +1,203 @@
+/*
+ * Copyright (C) The Apache Software Foundation. All rights reserved.
+ *
+ * This software is published under the terms of the Apache Software License
+ * version 1.1, a copy of which has been included with this distribution in
+ * the LICENSE.txt file.
+ */
+package org.apache.antlib.core;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.Map;
+import org.apache.avalon.framework.parameters.Parameters;
+import org.apache.myrmidon.api.AbstractTask;
+import org.apache.myrmidon.api.TaskException;
+import org.apache.myrmidon.interfaces.embeddor.Embeddor;
+import org.apache.myrmidon.interfaces.model.Project;
+import org.apache.myrmidon.interfaces.workspace.Workspace;
+
+/**
+ * Create a new Workspace and process a build in
+ * that new workspace.
+ *
+ * @author <a href="mailto:peter@apache.org">Peter Donald</a>
+ * @ant.task name="ant"
+ */
+public class AntTask
+    extends AbstractTask
+{
+    /**
+     * Default build file.
+     */
+    private static final String DEFAULT_BUILD_FILE = "build.ant";
+
+    /**
+     * If true, inherit all properties from parent Project
+     * If false, inherit only userProperties and those defined
+     * inside the ant call itself
+     */
+    private boolean m_inheritAll;
+
+    /**
+     * The build file which to execute. If not set defaults to
+     * using "build.ant" in the basedir of current project.
+     */
+    private File m_file;
+
+    /**
+     * The target to process in build file. If not specified
+     * will use default in specified build file.
+     */
+    private String m_target;
+
+    /**
+     * The "type" of the build file. By default this is null which
+     * means the type will be determined by the build file extension.
+     */
+    private String m_type;
+    private final ArrayList m_parameters = new ArrayList();
+
+    /**
+     * Specify whether should inherit properties in sub-build.
+     *
+     * @param inheritAll true to inherit else false
+     */
+    public void setInheritAll( final boolean inheritAll )
+    {
+        m_inheritAll = inheritAll;
+    }
+
+    /**
+     * set the build file to process.
+     *
+     * @param file the build file
+     */
+    public void setFile( final File file )
+    {
+        m_file = file;
+    }
+
+    /**
+     * set the type of build file.
+     *
+     * @param type the type of build file
+     */
+    public void setType( final String type )
+    {
+        m_type = type;
+    }
+
+    /**
+     * set the target to process. If none is defined it will
+     * execute the default target of the build file
+     */
+    public void setTarget( final String target )
+    {
+        m_target = target;
+    }
+
+    /**
+     * Add a parameter to processing of build file.
+     *
+     * @param param the parameter
+     */
+    public void addParam( final AntParam param )
+    {
+        m_parameters.add( param );
+    }
+
+    /**
+     * Execute the specified build, with specified parameters.
+     *
+     * @throws TaskException if an error occurs.
+     */
+    public void execute()
+        throws TaskException
+    {
+        if( null == m_file )
+        {
+            m_file = getContext().resolveFile( DEFAULT_BUILD_FILE );
+        }
+
+        final Embeddor embeddor =
+            (Embeddor)getContext().getService( Embeddor.class );
+
+        try
+        {
+            final Project project =
+                embeddor.createProject( m_file.toString(),
+                                        m_type,
+                                        new Parameters() );
+            final Workspace workspace =
+                embeddor.createWorkspace( buildParameters() );
+
+            if( null == m_target )
+            {
+                m_target = project.getDefaultTargetName();
+            }
+
+            workspace.executeProject( project, m_target );
+        }
+        catch( final Exception e )
+        {
+            throw new TaskException( e.toString(), e );
+        }
+    }
+
+    /**
+     * Build the parameters to pass to sub-project.
+     * These include the current tasks properties
+     * (if inheritall=true) and any supplied by the user.
+     *
+     * @return the created parameters
+     */
+    private Parameters buildParameters()
+        throws TaskException
+    {
+        final Parameters parameters = new Parameters();
+
+        if( m_inheritAll )
+        {
+            final Map properties = getContext().getProperties();
+            final Iterator keys = properties.keySet().iterator();
+            while( keys.hasNext() )
+            {
+                final String key = (String)keys.next();
+                final Object value = properties.get( key );
+                setProperty( parameters, key, value );
+            }
+        }
+
+        final int size = m_parameters.size();
+        for( int i = 0; i < size; i++ )
+        {
+            final AntParam param = (AntParam)m_parameters.get( i );
+            param.validate();
+            final String name = param.getName();
+            final String value = param.getValue().toString();
+            setProperty( parameters, name, value );
+        }
+
+        return parameters;
+    }
+
+    /**
+     * Utility method to add the property into parameters object.
+     *
+     * @param parameters where to put property
+     * @param name the property
+     * @param value the value of property
+     * @todo allow non-string params to be passed down
+     */
+    private void setProperty( final Parameters parameters,
+                              final String name,
+                              final Object value )
+    {
+        if( !name.startsWith( "myrmidon." ) )
+        {
+            parameters.setParameter( name, value.toString() );
+        }
+    }
+}
diff --git a/proposal/myrmidon/src/java/org/apache/antlib/core/Resources.properties b/proposal/myrmidon/src/java/org/apache/antlib/core/Resources.properties
index aa815df20..bbf5ed201 100644
--- a/proposal/myrmidon/src/java/org/apache/antlib/core/Resources.properties
+++ b/proposal/myrmidon/src/java/org/apache/antlib/core/Resources.properties
@@ -37,3 +37,6 @@ trycatch.missing-second.error=Missing <catch/> or <finally/> elements from <try-
 
 filetokenset.not-a-file.error=File {0} does not exist, or is not a file.
 filetokenset.read-tokens.error=Could not read tokens from {0}.
+
+param.noname.error=Missing name from parameter.
+param.novalue.error=Missing value from parameter "{0}".
\ No newline at end of file