diff --git a/ExportDXF/ExportDXF.csproj b/ExportDXF/ExportDXF.csproj
index 89660ea..1ff6511 100644
--- a/ExportDXF/ExportDXF.csproj
+++ b/ExportDXF/ExportDXF.csproj
@@ -22,7 +22,7 @@
     <UpdatePeriodically>false</UpdatePeriodically>
     <UpdateRequired>false</UpdateRequired>
     <MapFileExtensions>true</MapFileExtensions>
-    <ApplicationRevision>1</ApplicationRevision>
+    <ApplicationRevision>3</ApplicationRevision>
     <ApplicationVersion>1.0.0.%2a</ApplicationVersion>
     <UseApplicationTrust>false</UseApplicationTrust>
     <PublishWizardCompleted>true</PublishWizardCompleted>
diff --git a/ExportDXF/Forms/MainForm.cs b/ExportDXF/Forms/MainForm.cs
index f3cf28c..7579d3e 100644
--- a/ExportDXF/Forms/MainForm.cs
+++ b/ExportDXF/Forms/MainForm.cs
@@ -70,6 +70,7 @@ namespace ExportDXF.Forms
         {
             timeStarted = DateTime.Now;
 
+            sldWorks.UserControl = false;
             sldWorks.ActiveModelDocChangeNotify -= SldWorks_ActiveModelDocChangeNotify;
 
             Invoke(new MethodInvoker(() =>
@@ -86,6 +87,7 @@ namespace ExportDXF.Forms
 
             DetermineModelTypeAndExportToDXF(model);
 
+            sldWorks.UserControl = true;
         }
 
         private void Worker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)