Add DLL file

dll.c

@@ -0,0 +1,30 @@
+#include <stdio.h>
+#include <windows.h>
+
+//extern "C" BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD Reason, LPVOID LPV) {
+//This one was only necessary if you were using a C++ compiler
+
+BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
+{
+
+    switch (fdwReason)
+    {
+    case DLL_PROCESS_ATTACH:
+        // Code to run when the DLL is loaded
+        break;
+
+    case DLL_PROCESS_DETACH:
+        // Code to run when the DLL is freed
+        break;
+
+    case DLL_THREAD_ATTACH:
+        // Code to run when a thread is created during the DLL's lifetime
+        break;
+
+    case DLL_THREAD_DETACH:
+        // Code to run when a thread ends normally.
+        break;
+    }
+
+    return TRUE;
+}