Issue #19130: mention historic VS 2008 build dir, too
diff --git a/PCbuild/readme.txt b/PCbuild/readme.txt
index ca2a47d..fc25955 100644
--- a/PCbuild/readme.txt
+++ b/PCbuild/readme.txt
@@ -57,6 +57,8 @@
     Visual Studio 2003 (7.1)
 PC/VS8.0/
     Visual Studio 2005 (8.0)
+PC/VS9.0/
+    Visual Studio 2008 (9.0)
 
 
 C RUNTIME