--- /dev/null
+#[===[.md:
+# vcpkg_get_windows_sdk
+
+Get the Windows SDK number.
+
+## Usage:
+```cmake
+vcpkg_get_windows_sdk(<variable>)
+```
+#]===]
+
+function(vcpkg_get_windows_sdk ret)
+ set(WINDOWS_SDK $ENV{WindowsSDKVersion})
+ string(REPLACE "\\" "" WINDOWS_SDK "${WINDOWS_SDK}")
+ set(${ret} ${WINDOWS_SDK} PARENT_SCOPE)
+endfunction()