diff --git a/optional/install-drawio.cmd b/optional/install-drawio.cmd
new file mode 100644
index 0000000..129d272
--- /dev/null
+++ b/optional/install-drawio.cmd
@@ -0,0 +1,34 @@
+@echo off
+call check-for-admin
+if %ERRORLEVEL% neq 0 exit /b
+
+set SOFTWARE=..\software
+set MSI=drawio-setup.msi
+set STARTMENU=%PROGRAMDATA%\Microsoft\Windows\Start Menu\Programs
+set STARTMENU_USER=%APPDATA%\Microsoft\Windows\Start Menu\Programs
+
+if NOT EXIST %SOFTWARE%\%MSI% (
+  echo ERROR: %SOFTWARE%\%MSI% not found!
+  exit /b
+)
+
+echo ####### %0 #######
+
+echo installing Draw-IO ...
+cd %SOFTWARE%
+@echo on
+msiexec /i %MSI% /passive
+@echo off
+cd %OPT%
+
+echo moving Draw-IO startmenu shortcut ...
+move /Y "%STARTMENU_USER%\draw.io.lnk" "%STARTMENU%"
+icacls "%STARTMENU%\draw.io.lnk" /grant Users:R
+
+echo moving Draw-IO desktop link to public desktop ...
+move /Y "%USERPROFILE%\Desktop\draw.io.lnk" "%PUBLIC%\Desktop"
+icacls "%PUBLIC%\Desktop\draw.io.lnk" /grant Users:R
+
+echo ####### %0 #######
+pause
+
diff --git a/software/optional.csv b/software/optional.csv
index e7abd5b..86289a4 100644
--- a/software/optional.csv
+++ b/software/optional.csv
@@ -35,4 +35,4 @@ https://download3.pdf24.org/pdf24-creator-11.1.0.msi pdf24-setup.msi
 https://static.tp-link.com/2019/201911/20191115/Archer-T5E(UN)_V1_191116_Bluetooth.zip archerT5E-bluetooth.zip
 https://static.tp-link.com/2019/201911/20191115/Archer-T5E(UN)_V1_191116_Wi-Fi.zip archerT5E-wifi.zip
 https://www.heidisql.com/installers/HeidiSQL_12.3.0.6589_Setup.exe heidisql-setup.exe
-
+https://github.com/jgraph/drawio-desktop/releases/download/v21.6.5/draw.io-21.6.5.msi drawio-setup.msi