diff --git a/bin/ensure-choco.cmd b/bin/ensure-choco.cmd
new file mode 100644
index 0000000..67e72b1
--- /dev/null
+++ b/bin/ensure-choco.cmd
@@ -0,0 +1,7 @@
+@echo off
+setlocal
+REM ensure-choco command-name choco-package-name args
+where %1 2>nul >nul
+if errorlevel 1 (call choco install %2 -y & call v-choco-refreshenv)
+set _name_=%1
+call %_name_% %3 %4 %5 %6 %7 %8 %9
\ No newline at end of file
diff --git a/bin/ensure-scoop.cmd b/bin/ensure-scoop.cmd
new file mode 100644
index 0000000..c284103
--- /dev/null
+++ b/bin/ensure-scoop.cmd
@@ -0,0 +1,7 @@
+@echo off
+setlocal
+REM ensure-scoop command-name choco-package-name args
+where %1 2>nul >nul
+if errorlevel 1 (call scoop install %2 & call v-choco-refreshenv)
+set _name_=%1
+call %_name_% %3 %4 %5 %6 %7 %8 %9
\ No newline at end of file
diff --git a/readme.pdf b/readme.pdf
new file mode 100644
index 0000000..809247b
Binary files /dev/null and b/readme.pdf differ
diff --git a/readme.ppt b/readme.ppt
index 5bcf655..9e58882 100644
Binary files a/readme.ppt and b/readme.ppt differ
diff --git a/start.cmd b/start.cmd
deleted file mode 100644
index a88a728..0000000
--- a/start.cmd
+++ /dev/null
@@ -1,3 +0,0 @@
-@echo off
-call %~dp0env.cmd
-cmd /k
diff --git a/vid.cmd b/vid.cmd
new file mode 100644
index 0000000..82316f9
--- /dev/null
+++ b/vid.cmd
@@ -0,0 +1,2 @@
+@echo off
+cmd /k %~dp0env.cmd