diff --git a/indra/tools/vstool/VSTool.exe b/indra/tools/vstool/VSTool.exe
index 8be428614e..854290b90a 100755
Binary files a/indra/tools/vstool/VSTool.exe and b/indra/tools/vstool/VSTool.exe differ
diff --git a/indra/tools/vstool/main.cs b/indra/tools/vstool/main.cs
index cc73261e30..ef2e582b90 100755
--- a/indra/tools/vstool/main.cs
+++ b/indra/tools/vstool/main.cs
@@ -555,6 +555,10 @@ namespace VSTool
                         version = "VC100";
                         break;
 
+                    case "12.00":
+                        version = "VC120";
+                        break;
+
                     default:
                         throw new ApplicationException("Unknown .sln version: " + format);
                 }
@@ -595,6 +599,10 @@ namespace VSTool
                     progid = "VisualStudio.DTE.10.0";
                     break;
 
+                case "VC120":
+                    progid = "VisualStudio.DTE.12.0";
+                    break;
+
                 default:
                     throw new ApplicationException("Can't handle VS version: " + version);
             }