diff --git a/PCbuild9/env.bat b/PCbuild9/env.bat
new file mode 100644
index 0000000..73fbcd7
--- /dev/null
+++ b/PCbuild9/env.bat
@@ -0,0 +1,3 @@
+@echo off
+set VS9=%ProgramFiles%\Microsoft Visual Studio 9.0
+call "%VS9%\VC\vcvarsall.bat"