diff --git a/dlls/browseui/aclmulti.c b/dlls/browseui/aclmulti.c
index b0a0ec8b32c..11ba3b1e7b6 100644
--- a/dlls/browseui/aclmulti.c
+++ b/dlls/browseui/aclmulti.c
@@ -81,7 +81,7 @@ static void release_obj(struct ACLMultiSublist *obj)
         IACList_Release(obj->pACL);
 }
 
-HRESULT WINAPI ACLMulti_Constructor(IUnknown *pUnkOuter, IUnknown **ppOut)
+HRESULT ACLMulti_Constructor(IUnknown *pUnkOuter, IUnknown **ppOut)
 {
     ACLMulti *This;
     if (pUnkOuter)
diff --git a/dlls/browseui/browseui.h b/dlls/browseui/browseui.h
index 2c538d6afb1..fb464624ea1 100644
--- a/dlls/browseui/browseui.h
+++ b/dlls/browseui/browseui.h
@@ -24,9 +24,9 @@
 extern LONG BROWSEUI_refCount;
 extern HINSTANCE BROWSEUI_hinstance;
 
-HRESULT WINAPI ACLMulti_Constructor(IUnknown *punkOuter, IUnknown **ppOut);
-HRESULT WINAPI ProgressDialog_Constructor(IUnknown *punkOuter, IUnknown **ppOut);
-HRESULT WINAPI CompCatCacheDaemon_Constructor(IUnknown *punkOuter, IUnknown **ppOut);
+extern HRESULT ACLMulti_Constructor(IUnknown *punkOuter, IUnknown **ppOut);
+extern HRESULT ProgressDialog_Constructor(IUnknown *punkOuter, IUnknown **ppOut);
+extern HRESULT CompCatCacheDaemon_Constructor(IUnknown *punkOuter, IUnknown **ppOut);
 
 extern const GUID CLSID_CompCatCacheDaemon;
 
diff --git a/dlls/browseui/browseui_main.c b/dlls/browseui/browseui_main.c
index a7210a82261..c370408c025 100644
--- a/dlls/browseui/browseui_main.c
+++ b/dlls/browseui/browseui_main.c
@@ -46,7 +46,7 @@ LONG BROWSEUI_refCount = 0;
 
 HINSTANCE BROWSEUI_hinstance = 0;
 
-typedef HRESULT (WINAPI *LPFNCONSTRUCTOR)(IUnknown *pUnkOuter, IUnknown **ppvOut);
+typedef HRESULT (*LPFNCONSTRUCTOR)(IUnknown *pUnkOuter, IUnknown **ppvOut);
 
 static const struct {
     REFCLSID clsid;
diff --git a/dlls/browseui/compcatcachedaemon.c b/dlls/browseui/compcatcachedaemon.c
index 755fd8dbd0c..f4fd5e64ebf 100644
--- a/dlls/browseui/compcatcachedaemon.c
+++ b/dlls/browseui/compcatcachedaemon.c
@@ -51,7 +51,7 @@ typedef struct tagCCCD {
 
 static const IRunnableTaskVtbl CompCatCacheDaemonVtbl;
 
-HRESULT WINAPI CompCatCacheDaemon_Constructor(IUnknown *pUnkOuter, IUnknown **ppOut)
+HRESULT CompCatCacheDaemon_Constructor(IUnknown *pUnkOuter, IUnknown **ppOut)
 {
     CompCatCacheDaemon *This;
     if (pUnkOuter)
diff --git a/dlls/browseui/progressdlg.c b/dlls/browseui/progressdlg.c
index aa568e7330b..28538d3529d 100644
--- a/dlls/browseui/progressdlg.c
+++ b/dlls/browseui/progressdlg.c
@@ -246,7 +246,7 @@ static DWORD WINAPI dialog_thread(LPVOID lpParameter)
     return 0;
 }
 
-HRESULT WINAPI ProgressDialog_Constructor(IUnknown *pUnkOuter, IUnknown **ppOut)
+HRESULT ProgressDialog_Constructor(IUnknown *pUnkOuter, IUnknown **ppOut)
 {
     ProgressDialog *This;
     if (pUnkOuter)