Index: src/sdk/selecttargetdlg.cpp
===================================================================
--- src/sdk/selecttargetdlg.cpp (revision 2639)
+++ src/sdk/selecttargetdlg.cpp (working copy)
@@ -117,7 +117,17 @@
         ProjectBuildTarget* target = m_pProject->GetBuildTarget(m_Selected);
         if (target)
         {
-            target->SetExecutionParameters(XRCCTRL(*this, "txtParams", wxTextCtrl)->GetValue());
+               /* Search all '\n' in the program-parameters and replace them by
+                  ' '. This is necessary because a multiline text control may add
+                  '\n' to the text but these characters must not be part of the
+                  parameters when executing the program. */
+               wxString execution_parameters = XRCCTRL(*this, "txtParams", wxTextCtrl)->GetValue();
+               wxString::size_type pos = 0;
+
+               while ((pos = execution_parameters.find('\n', pos)) != wxString::npos)
+                               execution_parameters[pos] = ' ';
+
+            target->SetExecutionParameters(execution_parameters);
             target->SetHostApplication(XRCCTRL(*this, "txtHostApp", wxTextCtrl)->GetValue());
         }
     }
Index: src/sdk/resources/select_target.xrc
===================================================================
--- src/sdk/resources/select_target.xrc (revision 2639)
+++ src/sdk/resources/select_target.xrc (working copy)
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resource>
   <object class="wxDialog" name="dlgSelectTarget">
-    <title>Select target</title>
+     <title>Select target</title>
     <centered>1</centered>
     <style>wxDEFAULT_DIALOG_STYLE|wxRESIZE_BORDER|wxRESIZE_BOX</style>
     <object class="wxBoxSizer">
@@ -30,9 +30,12 @@
         <border>8</border>
       </object>
       <object class="sizeritem">
-        <object class="wxTextCtrl" name="txtParams"/>
+        <object class="wxTextCtrl" name="txtParams">
+          <style>wxTE_MULTILINE</style>
+               </object>
         <flag>wxLEFT|wxRIGHT|wxEXPAND</flag>
         <border>8</border>
+        <minsize>240,70</minsize>
       </object>
       <object class="sizeritem">
         <object class="wxStaticText">