Update DEVELOPMENT.md to reflect new paths.

dev-setup/setup_windows.bat

@@ -0,0 +1,38 @@
+@echo off
+setlocal
+
+REM #############################################
+
+PUSHD %~dp0
+SET ROOTDIR=%CD%
+POPD
+
+IF NOT DEFINED ProgramFiles(x86) (
+    echo This script requires a 64-bit Windows Installation. Exiting.
+    goto end
+)
+
+FOR %%X IN (protoc.exe) DO (SET PROTOC_FOUND=%%~$PATH:X)
+IF NOT DEFINED PROTOC_FOUND (
+    echo protobuf compiler ^(protoc^) is required but it's not installed. Install protoc 23.2 or higher. Ensure it is in your path. Aborting.
+    echo protoc is available here: https://github.com/protocolbuffers/protobuf/releases/download/v23.2/protoc-23.2-win64.zip
+    goto end
+)
+
+FOR %%X IN (capnp.exe) DO (SET CAPNP_FOUND=%%~$PATH:X)
+IF NOT DEFINED CAPNP_FOUND (
+    echo capnproto compiler ^(capnp^) is required but it's not installed. Install capnp 0.10.4 or higher. Ensure it is in your path. Aborting.
+    echo capnp is available here: https://capnproto.org/capnproto-c++-win32-0.10.4.zip
+    goto end
+)
+
+FOR %%X IN (cargo.exe) DO (SET CARGO_FOUND=%%~$PATH:X)
+IF NOT DEFINED CARGO_FOUND (
+    echo rust ^(cargo^) is required but it's not installed. Install rust 1.65 or higher. Ensure it is in your path. Aborting.
+    echo install rust via rustup here: https://static.rust-lang.org/rustup/dist/x86_64-pc-windows-msvc/rustup-init.exe
+    goto ends
+)
+
+echo Setup successful
+:end
+ENDLOCAL