diff --git a/project/build/Helpers.scala b/project/build/Helpers.scala
index d833ad2b2..d647e93e7 100644
--- a/project/build/Helpers.scala
+++ b/project/build/Helpers.scala
@@ -1,13 +1,8 @@
 import sbt._
 
-trait NoPublish extends ManagedBase
+trait NoUpdate extends ManagedBase with EmptyTask
 {
-	override final def publishAction = task { None }
-	override final def deliverAction = publishAction
-}
-trait NoUpdate extends ManagedBase
-{
-	override final def updateAction = task { None }
+	override final def updateAction = emptyTask
 }
 trait NoCrossPaths extends Project
 {
@@ -45,4 +40,18 @@ trait PrecompiledInterface extends BasicScalaProject with ManagedBase
 	override def defaultMainArtifact = Artifact(binID) extra("e:component" -> bincID)
 	def mkJarPath(id: String) = outputPath / (id + "-" + version.toString + ".jar")
 	override def ivyXML: scala.xml.NodeSeq = <publications/> // Remove when we build with 0.7.3, which does not unnecessarily add a default artifact
-}
\ No newline at end of file
+}
+trait EmptyTask extends Project {
+	def emptyTask = task {None}
+}
+trait NoRemotePublish extends BasicManagedProject with EmptyTask
+{
+	override def deliverAction = emptyTask
+	override def publishAction = emptyTask
+}
+trait NoLocalPublish extends BasicManagedProject with EmptyTask
+{
+	override def publishLocalAction = emptyTask
+	override def deliverLocalAction = emptyTask
+}
+trait NoPublish extends NoLocalPublish with NoRemotePublish
\ No newline at end of file
diff --git a/sbt/install/project/build/InstallExtractProject.scala b/project/build/InstallExtractProject.scala
similarity index 98%
rename from sbt/install/project/build/InstallExtractProject.scala
rename to project/build/InstallExtractProject.scala
index 255eff382..1c1c01bfa 100644
--- a/sbt/install/project/build/InstallExtractProject.scala
+++ b/project/build/InstallExtractProject.scala
@@ -5,6 +5,7 @@
 import sbt._
 import java.io.File
 
+// TODO: use ProguardProject
 protected class InstallExtractProject(info: ProjectInfo, pluginProject: => InstallPluginProject) extends DefaultProject(info) with NoPublish
 {
 	override def unmanagedClasspath = super.unmanagedClasspath +++ info.sbtClasspath
@@ -17,7 +18,7 @@ protected class InstallExtractProject(info: ProjectInfo, pluginProject: => Insta
 	def rootProjectDirectory = rootProject.info.projectPath
 	def outputJar = (plugin.outputPath ##) / defaultJarName
 	
-	/******** Proguard *******/
+	/******** Proguard  *******/
 	lazy val proguard = proguardTask dependsOn(`package`, writeProguardConfiguration, cleanProguard)
 	lazy val writeProguardConfiguration = writeProguardConfigurationTask dependsOn `package`
 	lazy val cleanProguard = cleanTask(outputJar)
diff --git a/sbt/install/project/build/InstallPluginProject.scala b/project/build/InstallerProject.scala
similarity index 60%
rename from sbt/install/project/build/InstallPluginProject.scala
rename to project/build/InstallerProject.scala
index 36e0a7739..fb67c3f74 100644
--- a/sbt/install/project/build/InstallPluginProject.scala
+++ b/project/build/InstallerProject.scala
@@ -1,8 +1,16 @@
 /* sbt -- Simple Build Tool
- * Copyright 2009, 2010 Mark Harrah
+ * Copyright 2009 Mark Harrah
  */
-
 import sbt._
+
+abstract class InstallerProject(info: ProjectInfo) extends ParentProject(info) with NoPublish
+{
+	/** Project for the sbt plugin that a project uses to generate the installer jar. */
+	lazy val installPlugin: InstallPluginProject = project("plugin", "Installer Plugin", new InstallPluginProject(_, installExtractor), installExtractor)
+	/** Project for the code that runs when the generated installer jar is run. */
+	lazy val installExtractor: InstallExtractProject = project("extract", "Installer Extractor", new InstallExtractProject(_, installPlugin))
+}
+
 import java.nio.charset.Charset
 
 protected class InstallPluginProject(info: ProjectInfo, extract: => InstallExtractProject) extends PluginProject(info)
diff --git a/project/build/XSbt.scala b/project/build/XSbt.scala
index 2907f170d..8c5c78370 100644
--- a/project/build/XSbt.scala
+++ b/project/build/XSbt.scala
@@ -34,11 +34,13 @@ class XSbt(info: ProjectInfo) extends ParentProject(info) with NoCrossPaths
 
 	val altCompilerSub = baseProject("main", "Alternate Compiler Test", stdTaskSub, logSub)
 
-	val sbtSub = project("sbt", "Simple Build Tool", new SbtProject(_) {}, compilerSub, launchInterfaceSub)
+	val sbtSub = project(sbtPath, "Simple Build Tool", new SbtProject(_) {}, compilerSub, launchInterfaceSub)
+	val installerSub = project(sbtPath / "install", "Installer", new InstallerProject(_) {}, sbtSub)
 
 	def baseProject(path: Path, name: String, deps: Project*) = project(path, name, new Base(_), deps : _*)
 	
 		/* Multi-subproject paths */
+	def sbtPath = path("sbt")
 	def cachePath = path("cache")
 	def tasksPath = path("tasks")
 	def launchPath = path("launch")
@@ -74,7 +76,7 @@ class XSbt(info: ProjectInfo) extends ParentProject(info) with NoCrossPaths
 
 		// used to test the retrieving and loading of an application: sample app is packaged and published to the local repository
 		lazy val testSamples = project("test-sample", "Launch Test", new TestSamples(_), interfaceSub, launchInterfaceSub)
-		class TestSamples(info: ProjectInfo) extends Base(info) with NoCrossPaths with NoPublish {
+		class TestSamples(info: ProjectInfo) extends Base(info) with NoCrossPaths with NoRemotePublish {
 			override def deliverProjectDependencies = Nil
 		}
 	}
diff --git a/sbt/install/project/build.properties b/sbt/install/project/build.properties
index ebd6f7ff5..a5ef57355 100644
--- a/sbt/install/project/build.properties
+++ b/sbt/install/project/build.properties
@@ -1,6 +1 @@
-project.name=extract
-project.organization=org.scala-tools.sbt
-project.version=0.3.1-SNAPSHOT
-sbt.version=0.7.1
-def.scala.version=2.7.7
-build.scala.versions=2.7.7
+project.version=0.3.1
diff --git a/sbt/install/project/build/InstallProject.scala b/sbt/install/project/build/InstallProject.scala
deleted file mode 100644
index 701d5bfc7..000000000
--- a/sbt/install/project/build/InstallProject.scala
+++ /dev/null
@@ -1,20 +0,0 @@
-/* sbt -- Simple Build Tool
- * Copyright 2009 Mark Harrah
- */
-import sbt._
-
-class InstallerProject(info: ProjectInfo) extends ParentProject(info) with NoPublish
-{
-	/** Project for the sbt plugin that a project uses to generate the installer jar. */
-	lazy val installPlugin: InstallPluginProject = project("plugin", "Installer Plugin", new InstallPluginProject(_, installExtractor), installExtractor)
-	/** Project for the code that runs when the generated installer jar is run. */
-	lazy val installExtractor: InstallExtractProject = project("extract", "Installer Extractor", new InstallExtractProject(_, installPlugin))
-}
-
-trait NoPublish extends BasicManagedProject
-{
-	override def publishLocalAction = publishAction
-	override def deliverAction = publishAction
-	override def deliverLocalAction = publishAction
-	override def publishAction = task {None}
-}
\ No newline at end of file