diff --git a/dlls/urlmon/urlmon.spec b/dlls/urlmon/urlmon.spec
index 575bdc08487..72bd21d3165 100644
--- a/dlls/urlmon/urlmon.spec
+++ b/dlls/urlmon/urlmon.spec
@@ -28,7 +28,7 @@
 @ stdcall CoInternetQueryInfo(ptr long long ptr long ptr long)
 @ stdcall CoInternetSetFeatureEnabled(long long long)
 @ stdcall CompareSecurityIds(ptr long ptr long long)
-@ stub CopyBindInfo
+@ stdcall CopyBindInfo(ptr ptr)
 @ stdcall CopyStgMedium(ptr ptr)
 @ stdcall CreateAsyncBindCtx(long ptr ptr ptr)
 @ stdcall CreateAsyncBindCtxEx(ptr long ptr ptr ptr long)
diff --git a/dlls/urlmon/urlmon_main.c b/dlls/urlmon/urlmon_main.c
index a3d1c10668c..94c4b44941f 100644
--- a/dlls/urlmon/urlmon_main.c
+++ b/dlls/urlmon/urlmon_main.c
@@ -533,6 +533,8 @@ HRESULT WINAPI CopyStgMedium(const STGMEDIUM *src, STGMEDIUM *dst)
         if(src->u.lpszFileName && !src->pUnkForRelease) {
             DWORD size = (strlenW(src->u.lpszFileName)+1)*sizeof(WCHAR);
             dst->u.lpszFileName = CoTaskMemAlloc(size);
+            if(!dst->u.lpszFileName)
+                return E_OUTOFMEMORY;
             memcpy(dst->u.lpszFileName, src->u.lpszFileName, size);
         }
         break;
@@ -554,6 +556,69 @@ HRESULT WINAPI CopyStgMedium(const STGMEDIUM *src, STGMEDIUM *dst)
     return S_OK;
 }
 
+/***********************************************************************
+ *           CopyBindInfo (URLMON.@)
+ */
+HRESULT WINAPI CopyBindInfo(const BINDINFO *pcbiSrc, BINDINFO *pcbiDest)
+{
+    DWORD size;
+    HRESULT hres;
+
+    TRACE("(%p %p)\n", pcbiSrc, pcbiDest);
+
+    if(!pcbiSrc || !pcbiDest)
+        return E_POINTER;
+    if(!pcbiSrc->cbSize || !pcbiDest->cbSize)
+        return E_INVALIDARG;
+
+    size = pcbiDest->cbSize;
+    if(size > pcbiSrc->cbSize) {
+        memcpy(pcbiDest, pcbiSrc, pcbiSrc->cbSize);
+        memset((char*)pcbiDest+pcbiSrc->cbSize, 0, size-pcbiSrc->cbSize);
+    } else {
+        memcpy(pcbiDest, pcbiSrc, size);
+    }
+    pcbiDest->cbSize = size;
+
+    size = FIELD_OFFSET(BINDINFO, szExtraInfo)+sizeof(void*);
+    if(pcbiSrc->cbSize>=size && pcbiDest->cbSize>=size && pcbiSrc->szExtraInfo) {
+        size = (strlenW(pcbiSrc->szExtraInfo)+1)*sizeof(WCHAR);
+        pcbiDest->szExtraInfo = CoTaskMemAlloc(size);
+        if(!pcbiDest->szExtraInfo)
+            return E_OUTOFMEMORY;
+        memcpy(pcbiDest->szExtraInfo, pcbiSrc->szExtraInfo, size);
+    }
+
+    size = FIELD_OFFSET(BINDINFO, stgmedData)+sizeof(STGMEDIUM);
+    if(pcbiSrc->cbSize>=size && pcbiDest->cbSize>=size) {
+        hres = CopyStgMedium(&pcbiSrc->stgmedData, &pcbiDest->stgmedData);
+        if(FAILED(hres)) {
+            CoTaskMemFree(pcbiDest->szExtraInfo);
+            return hres;
+        }
+    }
+
+    size = FIELD_OFFSET(BINDINFO, szCustomVerb)+sizeof(void*);
+    if(pcbiSrc->cbSize>=size && pcbiDest->cbSize>=size && pcbiSrc->szCustomVerb) {
+        size = (strlenW(pcbiSrc->szCustomVerb)+1)*sizeof(WCHAR);
+        pcbiDest->szCustomVerb = CoTaskMemAlloc(size);
+        if(!pcbiDest->szCustomVerb) {
+            CoTaskMemFree(pcbiDest->szExtraInfo);
+            ReleaseStgMedium(&pcbiDest->stgmedData);
+            return E_OUTOFMEMORY;
+        }
+    }
+
+    size = FIELD_OFFSET(BINDINFO, securityAttributes)+sizeof(SECURITY_ATTRIBUTES);
+    if(pcbiDest->cbSize >= size)
+        memset(&pcbiDest->securityAttributes, 0, sizeof(SECURITY_ATTRIBUTES));
+
+    if(pcbiSrc->pUnk)
+        IUnknown_AddRef(pcbiDest->pUnk);
+
+    return S_OK;
+}
+
 static BOOL text_richtext_filter(const BYTE *b, DWORD size)
 {
     return size > 5 && !memcmp(b, "{\\rtf", 5);