diff --git a/bin/Resources/i686/exchndl.dll b/bin/Resources/i686/exchndl.dll
deleted file mode 100644
index d836a676..00000000
Binary files a/bin/Resources/i686/exchndl.dll and /dev/null differ
diff --git a/libs/DLL-README.txt b/libs/DLL-README.txt
new file mode 100644
index 00000000..058ec068
--- /dev/null
+++ b/libs/DLL-README.txt
@@ -0,0 +1,43 @@
+# SRB2 - Which DLLs do I need to bundle?
+
+Updated 12/4/2018 (v2.1.21)
+
+Here are the required DLLs, per build. For each architecture, copy all the binaries from these folders:
+
+* libs\dll-binaries\[i686/x86_64]
+* libs\SDL2\[i686/x86_64]...\bin
+* libs\SDL2_mixer\[i686/x86_64]...\bin
+
+and don't forget to build r_opengl.dll for srb2dd.
+
+## srb2win, 32-bit
+
+* libs\dll-binaries\i686\exchndl.dll
+* libs\dll-binaries\i686\libgme.dll
+* libs\dll-binaries\i686\mgwhelp.dll (depend for exchndl.dll)
+* libs\SDL2\i686-w64-mingw32\bin\SDL2.dll
+* libs\SDL2_mixer\i686-w64-mingw32\bin\*.dll (get everything)
+
+## srb2win, 64-bit
+
+* libs\dll-binaries\x86_64\exchndl.dll
+* libs\dll-binaries\x86_64\libgme.dll
+* libs\dll-binaries\x86_64\mgwhelp.dll (depend for exchndl.dll)
+* libs\SDL2\x86_64-w64-mingw32\bin\SDL2.dll
+* libs\SDL2_mixer\x86_64-w64-mingw32\bin\*.dll (get everything)
+
+## srb2dd, 32-bit
+
+* libs\dll-binaries\i686\exchndl.dll
+* libs\dll-binaries\i686\fmodex.dll
+* libs\dll-binaries\i686\libgme.dll
+* libs\dll-binaries\i686\mgwhelp.dll (depend for exchndl.dll)
+* r_opengl.dll (build this from make)
+
+## srb2dd, 64-bit
+
+* libs\dll-binaries\x86_64\exchndl.dll
+* libs\dll-binaries\x86_64\fmodex.dll
+* libs\dll-binaries\x86_64\libgme.dll
+* libs\dll-binaries\x86_64\mgwhelp.dll (depend for exchndl.dll)
+* r_opengl.dll (build this from make)
diff --git a/bin/Resources/i686/fmod.dll b/libs/dll-binaries/i686/Old/fmod.dll
similarity index 100%
rename from bin/Resources/i686/fmod.dll
rename to libs/dll-binaries/i686/Old/fmod.dll
diff --git a/bin/Resources/i686/fmodexL.dll b/libs/dll-binaries/i686/Old/fmodexL.dll
similarity index 100%
rename from bin/Resources/i686/fmodexL.dll
rename to libs/dll-binaries/i686/Old/fmodexL.dll
diff --git a/bin/Resources/i686/libgcc_s_dw2-1.dll b/libs/dll-binaries/i686/Old/libgcc_s_dw2-1.dll
similarity index 100%
rename from bin/Resources/i686/libgcc_s_dw2-1.dll
rename to libs/dll-binaries/i686/Old/libgcc_s_dw2-1.dll
diff --git a/bin/Resources/i686/libintl-8.dll b/libs/dll-binaries/i686/Old/libintl-8.dll
similarity index 100%
rename from bin/Resources/i686/libintl-8.dll
rename to libs/dll-binaries/i686/Old/libintl-8.dll
diff --git a/libs/dll-binaries/i686/exchndl.dll b/libs/dll-binaries/i686/exchndl.dll
new file mode 100644
index 00000000..d6beb764
Binary files /dev/null and b/libs/dll-binaries/i686/exchndl.dll differ
diff --git a/bin/Resources/i686/fmodex.dll b/libs/dll-binaries/i686/fmodex.dll
similarity index 100%
rename from bin/Resources/i686/fmodex.dll
rename to libs/dll-binaries/i686/fmodex.dll
diff --git a/bin/Resources/i686/libgme.dll b/libs/dll-binaries/i686/libgme.dll
similarity index 100%
rename from bin/Resources/i686/libgme.dll
rename to libs/dll-binaries/i686/libgme.dll
diff --git a/libs/dll-binaries/i686/mgwhelp.dll b/libs/dll-binaries/i686/mgwhelp.dll
new file mode 100644
index 00000000..3cf97424
Binary files /dev/null and b/libs/dll-binaries/i686/mgwhelp.dll differ
diff --git a/bin/Resources/x86_64/fmod64.dll b/libs/dll-binaries/x86_64/Old/fmod64.dll
similarity index 100%
rename from bin/Resources/x86_64/fmod64.dll
rename to libs/dll-binaries/x86_64/Old/fmod64.dll
diff --git a/bin/Resources/x86_64/fmodexL64.dll b/libs/dll-binaries/x86_64/Old/fmodexL64.dll
similarity index 100%
rename from bin/Resources/x86_64/fmodexL64.dll
rename to libs/dll-binaries/x86_64/Old/fmodexL64.dll
diff --git a/libs/dll-binaries/x86_64/exchndl.dll b/libs/dll-binaries/x86_64/exchndl.dll
new file mode 100644
index 00000000..747d7a3d
Binary files /dev/null and b/libs/dll-binaries/x86_64/exchndl.dll differ
diff --git a/bin/Resources/x86_64/fmodex64.dll b/libs/dll-binaries/x86_64/fmodex64.dll
similarity index 100%
rename from bin/Resources/x86_64/fmodex64.dll
rename to libs/dll-binaries/x86_64/fmodex64.dll
diff --git a/bin/Resources/x86_64/libgme.dll b/libs/dll-binaries/x86_64/libgme.dll
similarity index 100%
rename from bin/Resources/x86_64/libgme.dll
rename to libs/dll-binaries/x86_64/libgme.dll
diff --git a/libs/dll-binaries/x86_64/mgwhelp.dll b/libs/dll-binaries/x86_64/mgwhelp.dll
new file mode 100644
index 00000000..4e30e140
Binary files /dev/null and b/libs/dll-binaries/x86_64/mgwhelp.dll differ