diff --git a/engine/split/v4k_dll.c b/engine/split/v4k_dll.c
deleted file mode 100644
index fe438d8..0000000
--- a/engine/split/v4k_dll.c
+++ /dev/null
@@ -1,29 +0,0 @@
-#if is(win32)
-#   include <winsock2.h>
-#   define dlopen(name,mode)    (void*)( (name) ? LoadLibraryA(name) : GetModuleHandle(NULL))
-#   define dlsym(handle,symbol) GetProcAddress((HMODULE)handle, symbol )
-#   define dlclose(handle)      0
-#else
-#   include <dlfcn.h>
-#endif
-
-void* dll(const char *filename, const char *symbol) {
-/*
-    char *buf, *base = file_name(filename);
-    if( file_exists(buf = va("%s", base)) ||
-        file_exists(buf = va("%s.dll", base)) ||
-        file_exists(buf = va("%s.so", base)) ||
-        file_exists(buf = va("lib%s.so", base)) ||
-        file_exists(buf = va("%s.dylib", base)) ) {
-        filename = buf;
-    }
-*/
-    void *dll = dlopen(filename, RTLD_NOW | RTLD_LOCAL);
-    dll = dll ? dlsym(dll, symbol) : 0;
-    return dll;
-}
-
-#if 0 // demo: cl demo.c /LD && REM dll
-EXPORT int add2(int a, int b) { return a + b; }
-int main() { int (*adder)() = dll("demo.dll", "add2"); printf("%d\n", adder(2,3)); }
-#endif
diff --git a/engine/split/v4k_dll.h b/engine/split/v4k_dll.h
deleted file mode 100644
index a4a0064..0000000
--- a/engine/split/v4k_dll.h
+++ /dev/null
@@ -1,12 +0,0 @@
-// dll utils
-// - rlyeh, public domain
-
-/// !!! `filename` must contain extension
-/// load dynamic library `file` and search for `symbol`
-/// return: NULL if not found, found symbol otherwise.
-/// filename: path to dynamic library file. must contain extension.
-/// symbol: symbol name. must not be NULL.
-/// see: dlopen^, dlclose^
-/// > bool (*plugin_init)(void) = dll("plugin.dll", "init");
-/// > assert(plugin_init());
-API void* dll(const char *filename, const char *symbol);