-Second, go to the module directory (For example, MdeModulePkg\Application\HelloWorld),\r
-and then begin to build\r
+The default tool chain (named MYTOOLS) is pre-configured to use VS2005 for IA32\r
+and X64 target architectures and the DDK for IPF target architectures. To use a\r
+different tool chain, either modify the tools_def.txt file's MYTOOLS entries,\r
+or modify the %WORKSPACE%\Conf\target.txt file's TOOL_CHAIN_TAG. The pre-defined\r
+tags are listed near the top of the %WORKSPACE%\Conf\tools_def.txt file, below\r
+the Supported Tool Chains comment.\r
+Alternatively, you may use the build command's -t option to specify a different\r
+tool chain tag name: build -t VS2003 ... , for example. Using this method will\r
+require that you always use the build command's -t option.\r
+\r
+\r
+Next, go to the module directory and begin to build. This example is for the\r
+HelloWorld application.\r
+\r