diff --git a/reactos/lib/msimg32/msimg32.spec b/reactos/lib/msimg32/msimg32.spec
index a5e3be36466..773084602a0 100644
--- a/reactos/lib/msimg32/msimg32.spec
+++ b/reactos/lib/msimg32/msimg32.spec
@@ -1,5 +1,5 @@
 @ stdcall AlphaBlend(long long long long long long long long long long long) gdi32.GdiAlphaBlend
-@ stub DllInitialize
+@ stdcall DllInitialize(long long ptr) DllMain
 @ stdcall GradientFill(long ptr long ptr long long) gdi32.GdiGradientFill
 @ stdcall TransparentBlt(long long long long long long long long long long long) gdi32.GdiTransparentBlt
 @ stdcall vSetDdrawflag()
diff --git a/reactos/lib/msimg32/msimg32_main.c b/reactos/lib/msimg32/msimg32_main.c
index 43e71036240..4586a3046d9 100644
--- a/reactos/lib/msimg32/msimg32_main.c
+++ b/reactos/lib/msimg32/msimg32_main.c
@@ -26,6 +26,18 @@
 
 WINE_DEFAULT_DEBUG_CHANNEL(msimg32);
 
+/***********************************************************************
+ *           DllInitialize (MSIMG32.@)
+ *
+ * MSIMG32 initialisation routine.
+ */
+BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
+{
+    if (reason == DLL_PROCESS_ATTACH) DisableThreadLibraryCalls( inst );
+    return TRUE;
+}
+
+
 /******************************************************************************
  *           vSetDdrawflag   (MSIMG32.@)
  */