diff --git a/bash/bashrc/package.sh b/bash/bashrc/package.sh
index f69e5a5..1595e8f 100644
--- a/bash/bashrc/package.sh
+++ b/bash/bashrc/package.sh
@@ -1,16 +1,20 @@
 #!/bin/bash
+IS_CYGWIN=false
 
 case $( uname -a | awk '{ print $1 }' ) in
     Darwin) # although this is deprecated, Mac still use it
         PERM="+111"
         ;;
     # Linux) ;& // Fall through does not support in OS X
-    # CYGWIN~) ;&
+    CYGWIN*)
+        PERM="/111"
+        IS_CYGWIN=true
+        ;;
     *)
         PERM="/111"
         ;;
 esac
-            
+
 function __func_head() {
     echo "Usage:" ${FUNCNAME[1]} $1
 }
diff --git a/bash/bashrc/sources/11_vs_env b/bash/bashrc/sources/11_vs_env
new file mode 100755
index 0000000..1b361bc
--- /dev/null
+++ b/bash/bashrc/sources/11_vs_env
@@ -0,0 +1,34 @@
+#!/bin/bash
+
+if ! $IS_CYGWIN; then
+	return
+fi
+
+echo $PATH | grep -q MSBuild
+if [ -n "$FrameworkVersion" ]; then
+	alias vsshell='echo "FrameworkVersion $FrameworkVersion"'
+	return
+fi
+
+BAT_DIR=~/.local/lib/bat
+mkdir -p $BAT_DIR
+
+VS_SHELL_BAT=$BAT_DIR/vs-env.bat
+
+function vsshell {
+	_SHELL=$( cygpath -w -a $VS_SHELL_BAT )
+	cmd /c "$_SHELL"
+	exit
+}
+
+if [ -f "$VS_SHELL_BAT" ]; then
+	return
+fi
+
+START_MENU="$( cygpath $ProgramData )/Microsoft/Windows/Start Menu/"
+
+_PATH=$( find "$START_MENU" -name "*Command Prompt*" | grep "Visual Studio" | grep x64 | grep Native | xargs -I % readshortcut % -r | grep -o "\"\([^\"]\+\)\"" )
+
+echo "@echo off" > "$VS_SHELL_BAT"
+echo "CALL $_PATH" >> "$VS_SHELL_BAT"
+echo "START $( where mintty ) -i /Cygwin-Terminal.ico -" >> "$VS_SHELL_BAT"