Index: src/DeltaShell/DeltaShell.Gui/GuiImportHandler.cs
===================================================================
diff -u -r5fc71a385897af92ccb092f2f969b5709afab85a -r6b36acf96bf8747d721d8592dcfcf95f0a0308e5
--- src/DeltaShell/DeltaShell.Gui/GuiImportHandler.cs	(.../GuiImportHandler.cs)	(revision 5fc71a385897af92ccb092f2f969b5709afab85a)
+++ src/DeltaShell/DeltaShell.Gui/GuiImportHandler.cs	(.../GuiImportHandler.cs)	(revision 6b36acf96bf8747d721d8592dcfcf95f0a0308e5)
@@ -10,7 +10,6 @@
 using DelftTools.Utils.Aop;
 using DelftTools.Utils.IO;
 using DelftTools.Utils.Reflection;
-using DelftTools.Utils.RegularExpressions;
 using DeltaShell.Gui.Forms;
 using DeltaShell.Gui.Properties;
 using log4net;
@@ -40,8 +39,6 @@
         public void ImportDataTo(object target)
         {
             ImportToItem(target);
-
-            RegularExpression.ClearExpressionsCache(); // prevent memory leaks
         }
 
         public IFileImporter GetSupportedImporterForTargetType(object target)