diff --git a/dlls/qedit/main.c b/dlls/qedit/main.c
index f4d1bbb0613..a4a4f5ec38c 100644
--- a/dlls/qedit/main.c
+++ b/dlls/qedit/main.c
@@ -23,15 +23,18 @@
 
 WINE_DEFAULT_DEBUG_CHANNEL(qedit);
 
-static HINSTANCE instance;
+static HINSTANCE qedit_instance;
 
-BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv)
+BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, void *reserved)
 {
-    switch(fdwReason) {
-        case DLL_PROCESS_ATTACH:
-            instance = hInstDLL;
-            DisableThreadLibraryCalls(hInstDLL);
-            break;
+    if (reason == DLL_PROCESS_ATTACH)
+    {
+        qedit_instance = instance;
+        DisableThreadLibraryCalls(instance);
+    }
+    else if (reason == DLL_PROCESS_DETACH && !reserved)
+    {
+        strmbase_release_typelibs();
     }
     return TRUE;
 }
@@ -243,7 +246,7 @@ HRESULT WINAPI DllRegisterServer(void)
     IFilterMapper2 *mapper;
     HRESULT hr;
 
-    if (FAILED(hr = __wine_register_resources( instance )))
+    if (FAILED(hr = __wine_register_resources(qedit_instance)))
         return hr;
 
     if (FAILED(hr = CoCreateInstance(&CLSID_FilterMapper2, NULL, CLSCTX_INPROC_SERVER,
@@ -267,7 +270,7 @@ HRESULT WINAPI DllUnregisterServer(void)
     IFilterMapper2 *mapper;
     HRESULT hr;
 
-    if (FAILED(hr = __wine_unregister_resources( instance )))
+    if (FAILED(hr = __wine_unregister_resources(qedit_instance)))
         return hr;
 
     if (FAILED(hr = CoCreateInstance(&CLSID_FilterMapper2, NULL, CLSCTX_INPROC_SERVER,
diff --git a/dlls/qedit/mediadet.c b/dlls/qedit/mediadet.c
index d32679b6bb8..e1defaa9a67 100644
--- a/dlls/qedit/mediadet.c
+++ b/dlls/qedit/mediadet.c
@@ -28,7 +28,6 @@
 #include "ole2.h"
 
 #include "qedit_private.h"
-#include "wine/strmbase.h"
 #include "wine/debug.h"
 
 WINE_DEFAULT_DEBUG_CHANNEL(qedit);
diff --git a/dlls/qedit/qedit_private.h b/dlls/qedit/qedit_private.h
index 7011c9f70dd..0c0655084d5 100644
--- a/dlls/qedit/qedit_private.h
+++ b/dlls/qedit/qedit_private.h
@@ -32,6 +32,7 @@
 #include "winuser.h"
 #include "dshow.h"
 #include "qedit.h"
+#include "wine/strmbase.h"
 
 HRESULT timeline_create(IUnknown *outer, IUnknown **out) DECLSPEC_HIDDEN;
 HRESULT media_detector_create(IUnknown *outer, IUnknown **out) DECLSPEC_HIDDEN;
diff --git a/dlls/qedit/samplegrabber.c b/dlls/qedit/samplegrabber.c
index bd8480df48b..1619111f95d 100644
--- a/dlls/qedit/samplegrabber.c
+++ b/dlls/qedit/samplegrabber.c
@@ -29,7 +29,6 @@
 
 #include "qedit_private.h"
 #include "wine/debug.h"
-#include "wine/strmbase.h"
 
 WINE_DEFAULT_DEBUG_CHANNEL(qedit);