Index: windows/build_tools/_uptol.bat
===================================================================
--- windows/build_tools/_uptol.bat	(revision 1bd698a7fd284a7080b04d88e98cd9baba06cb9c)
+++ windows/build_tools/_uptol.bat	(revision 19aef0f33c0f445fcd9a5ab55394b1249211b461)
@@ -151,6 +151,6 @@
 )
 If "%_vsvars32%"=="" (
-  If Defined VS90COMNTOOLS (
-    call "%VS90COMNTOOLS%vsvars32"
+  If Defined VS80COMNTOOLS (
+    call "%VS80COMNTOOLS%vsvars32"
     If errorlevel 1 (
       Set _msg_error=No se pudo ejecutar vsvars32
@@ -159,5 +159,5 @@
     Set _vsvars32=1
   ) else (
-    Echo VS90COMNTOOLS no esta definida intentanto vsvars32 desde el PATH
+    Echo VS80COMNTOOLS no esta definida intentanto vsvars32 desde el PATH
     call vsvars32
     If errorlevel 1 (