diff --git a/app/DD_PM_WINDREAM/frmProfileDesigner.vb b/app/DD_PM_WINDREAM/frmProfileDesigner.vb
index 325d41d..291891c 100644
--- a/app/DD_PM_WINDREAM/frmProfileDesigner.vb
+++ b/app/DD_PM_WINDREAM/frmProfileDesigner.vb
@@ -940,13 +940,17 @@ Public Class frmProfileDesigner
             Dim userManagerPath As String = clsModules.GetModulePath("User Manager")
 
             If userManagerPath Is Nothing Then
-                MsgBox("User Manager konnte nicht gefunden werden!", MsgBoxStyle.Critical)
+                MsgBox("Pfad zu User Manager konnte nicht gefunden werden!", MsgBoxStyle.Critical)
             Else
 
                 Dim exePath As String = Path.Combine(userManagerPath, "DDUserManager.exe")
-                Dim psi As New ProcessStartInfo(exePath)
 
-                Process.Start(psi)
+                If File.Exists(exePath) Then
+                    Dim psi As New ProcessStartInfo(exePath)
+                    Process.Start(psi)
+                Else
+                    MsgBox("Programm User Manager konnte nicht gefunden werden!", MsgBoxStyle.Critical)
+                End If
             End If
         Catch ex As Exception
             MsgBox("Error while startign User Manager:" & vbCrLf & ex.Message, MsgBoxStyle.Critical)