diff --git a/INSTALL.Win32 b/INSTALL.Win32
index a796ee3787..1df870740c 100644
--- a/INSTALL.Win32
+++ b/INSTALL.Win32
@@ -36,7 +36,8 @@ Compiling
 	
 5	Compile
 	
-	Run development\Win32\packaging\build_msvc.bat
+	From MS Visual Studio command prompt (not the regular cmd.exe), 
+	run development\Win32\packaging\build_msvc.bat
 
 Creating the Installer
 ======================