diff --git a/dlls/msacm/msacm32_main.c b/dlls/msacm/msacm32_main.c
index 82317dc7..71a94f3 100644
--- a/dlls/msacm/msacm32_main.c
+++ b/dlls/msacm/msacm32_main.c
@@ -44,6 +44,7 @@
 
     switch (fdwReason) {
     case DLL_PROCESS_ATTACH:
+        DisableThreadLibraryCalls(hInstDLL);
         MSACM_hHeap = HeapCreate(0, 0x10000, 0);
         MSACM_hInstance32 = hInstDLL;
         MSACM_RegisterAllDrivers();
@@ -54,10 +55,6 @@
         MSACM_hHeap = NULL;
         MSACM_hInstance32 = NULL;
 	break;
-    case DLL_THREAD_ATTACH:
-	break;
-    case DLL_THREAD_DETACH:
-	break;
     default:
 	break;
     }