diff --git a/module.xml b/module.xml
index b145957..5a05df0 100644
--- a/module.xml
+++ b/module.xml
@@ -18,7 +18,7 @@
   <Resource Name="%ZAPM.ZpmLoad.GBL" />
   <UnitTest Name="/unitest/zapm/" Package="ZAPM.unutest.zapm" Phase="verify"/>
   <Invokes>
-   <Invoke Class="%ZAPM.compat.Compat" Method="CheckCompatibility" Phase="Reload" When="After" />
+   <Invoke Class="%ZAPM.ext.zapp" Method="init"></Invoke>
   </Invokes>
 </Module>
 </Document>
diff --git a/preload/cls/_ZAPM/compat/Compat.cls b/preload/cls/_ZAPM/compat/Compat.cls
deleted file mode 100644
index 497bb2d..0000000
--- a/preload/cls/_ZAPM/compat/Compat.cls
+++ /dev/null
@@ -1,37 +0,0 @@
-Class %ZAPM.compat.Compat
-{
-/// Will be invoked after Reload and before Compile
-ClassMethod CheckCompatibility()
-{
-    Write !, $c(9)_"Checking namespace compatibility..."
-    If $Namespace '= "%SYS" {
-        Throw ..GetError("This application must be installed in the ""%SYS"" namespace")
-    }
-    Write " OK!"
-    // Some classes have been renamed in IPM (v0.9+). 
-    // The following code will change the class definition to the old class name for backward compatibility
-    Write !, $c(9)_"Checking package manager version compatibility..."
-    Set oldClass = "%ZPM.PackageManager.Developer.Lifecycle.Module"
-    Set newClass = "%IPM.Lifecycle.Module"
-    If ##class(%Dictionary.ClassDefinition).%ExistsId(newClass) {
-       Return
-    } ElseIf '##class(%Dictionary.ClassDefinition).%ExistsId(oldClass) {
-        Throw ..GetError("Neither "_oldClass_" nor "_newClass_" exists. Please check your installation of zpm/ipm")
-    }
-    Set classname = "%ZAPM.ext.Lifecycle"
-    Set cls = ##class(%Dictionary.ClassDefinition).%OpenId(classname)
-    If '$IsObject(cls) {
-        Throw ..GetError("Class "_ classname _" does not exist. Please check your src folder")
-    }
-    Set cls.Super = oldClass
-    $$$ThrowOnError(cls.%Save())
-    Write " OK!"
-}
-
-ClassMethod GetError(msg As %String) As %Exception.General [ Internal, Private ]
-{
-    Write !, "ERROR: ", msg, !
-    Return ##class(%Exception.General).%New(msg)
-}
-
-}
\ No newline at end of file
diff --git a/preload/cls/_ZAPM/ext/Lifecycle.cls b/preload/cls/_ZAPM/ext/Lifecycle.cls
new file mode 100644
index 0000000..8197e2b
--- /dev/null
+++ b/preload/cls/_ZAPM/ext/Lifecycle.cls
@@ -0,0 +1,20 @@
+Class %ZAPM.ext.Lifecycle Extends %ZPM.PackageManager.Developer.Lifecycle.Module
+{
+
+ClassMethod RunOnLoad() [ CodeMode = objectgenerator ]
+{
+	
+	Set sc = $$$OK
+	Try {
+		if $Namespace'="%SYS" {
+			$$$ThrowOnError($$$ERROR($$$GeneralError,"This application must be installed in the ""%SYS"" namespace "))
+		}
+		;$$$ThrowOnError($$$ERROR($$$GeneralError,"some error"))
+	} Catch e {
+		Set sc = e.AsStatus()
+	}
+	Return sc
+}
+
+}
+
diff --git a/src/cls/%ZAPM/ext/Lifecycle.cls b/src/cls/%ZAPM/ext/Lifecycle.cls
index 1d37927..8197e2b 100755
--- a/src/cls/%ZAPM/ext/Lifecycle.cls
+++ b/src/cls/%ZAPM/ext/Lifecycle.cls
@@ -1,4 +1,4 @@
-Class %ZAPM.ext.Lifecycle Extends %IPM.Lifecycle.Module
+Class %ZAPM.ext.Lifecycle Extends %ZPM.PackageManager.Developer.Lifecycle.Module
 {
 
 ClassMethod RunOnLoad() [ CodeMode = objectgenerator ]