diff --git a/bacnet-stack/indent.bat b/bacnet-stack/indent.bat
new file mode 100644
index 00000000..d4ceff45
--- /dev/null
+++ b/bacnet-stack/indent.bat
@@ -0,0 +1,23 @@
+rem Indent the C and H files with specific coding standard
+rem requires 'indent.exe' from MSYS (MinGW).
+echo -kr -nut -nlp -ip4 -cli4 -bfda -nbc -nbbo -c0 -cd0 -cp0 -di0 -l79 -nhnl > ".indent.pro"
+
+call :treeProcess
+goto :eof
+
+:treeProcess
+rem perform the indent on all the files of this subdirectory:
+for %%f in (*.c) do (
+    indent.exe "%%f" -o "%%f"
+)
+for %%f in (*.h) do (
+    indent.exe "%%f" -o "%%f"
+)
+rem loop over all directories and sub directories
+for /D %%d in (*) do (
+    cd %%d
+    call :treeProcess
+    cd ..
+)
+exit /b
+