diff --git a/.gitignore b/.gitignore
index 9ea0f13..5cc3a5d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 .*
 !.gitignore
+build/
diff --git a/BlockLua.dll b/BlockLua.dll
deleted file mode 100644
index 962b4c3..0000000
Binary files a/BlockLua.dll and /dev/null differ
diff --git a/compile.bat b/compile.bat
index d812f9a..921f37f 100644
--- a/compile.bat
+++ b/compile.bat
@@ -1,16 +1,19 @@
 @echo off
 cd /d %~dp0
 
+rem ensure build directory exists
+if not exist build mkdir build
+
 set buildargs=-Wall -Werror -m32 -shared -Isrc -Iinc/tsfuncs -Iinc/lua -lpsapi -L. -llua5.1 -static-libgcc -static-libstdc++
 
 echo on
 
-g++ src/bllua4.cpp %buildargs% -o BlockLua.dll
+g++ src/bllua4.cpp %buildargs% -o build\BlockLua.dll
 @rem g++ -DBLLUA_UNSAFE src/bllua4.cpp %buildargs% -o BlockLua-Unsafe.dll
 
 @echo off
 
-rem objdump -d BlockLua.dll > BlockLua.dll.dump.txt
-rem objdump -d BlockLua-Unsafe.dll > BlockLua-Unsafe.dll.dump.txt
+rem objdump -d build\BlockLua.dll > build\BlockLua.dll.dump.txt
+rem objdump -d build\BlockLua-Unsafe.dll > build\BlockLua-Unsafe.dll.dump.txt
 
 pause