Add buildbot support scripts.
diff --git a/PCbuild/pyclean.bat b/PCbuild/pyclean.bat
new file mode 100644
index 0000000..92e6545
--- /dev/null
+++ b/PCbuild/pyclean.bat
@@ -0,0 +1,5 @@
+call "%VS71COMNTOOLS%vsvars32.bat"
+devenv.exe /clean Debug /out clean.txt PCbuild\pcbuild.sln
+type clean.txt
+del clean.txt
+