appwiz.cpl: Use custom user agent string for addon downloader.

dlls/appwiz.cpl/Makefile.in

 MODULE    = appwiz.cpl
-IMPORTS   = uuid urlmon advpack comctl32 advapi32 shell32 user32 comdlg32
+IMPORTS   = uuid urlmon advpack comctl32 advapi32 shell32 ole32 user32 comdlg32
 DELAYIMPORTS = msi
 
 C_SRCS = \

dlls/appwiz.cpl/addons.c

@@ -415,6 +415,8 @@ static enum install_res install_from_cache(void)
     return res;
 }
 
+static IInternetBindInfo InstallCallbackBindInfo;
+
 static HRESULT WINAPI InstallCallback_QueryInterface(IBindStatusCallback *iface,
         REFIID riid, void **ppv)
 {
@@ -423,6 +425,12 @@ static HRESULT WINAPI InstallCallback_QueryInterface(IBindStatusCallback *iface,
         return S_OK;
     }
 
+    if(IsEqualGUID(&IID_IInternetBindInfo, riid)) {
+        TRACE("IID_IInternetBindInfo\n");
+        *ppv = &InstallCallbackBindInfo;
+        return S_OK;
+    }
+
     return E_INVALIDARG;
 }
 
@@ -564,6 +572,59 @@ static const IBindStatusCallbackVtbl InstallCallbackVtbl = {
 
 static IBindStatusCallback InstallCallback = { &InstallCallbackVtbl };
 
+static HRESULT WINAPI InstallCallbackBindInfo_QueryInterface(IInternetBindInfo *iface, REFIID riid, void **ppv)
+{
+    return IBindStatusCallback_QueryInterface(&InstallCallback, riid, ppv);
+}
+
+static ULONG WINAPI InstallCallbackBindInfo_AddRef(IInternetBindInfo *iface)
+{
+    return 2;
+}
+
+static ULONG WINAPI InstallCallbackBindInfo_Release(IInternetBindInfo *iface)
+{
+    return 1;
+}
+
+static HRESULT WINAPI InstallCallbackBindInfo_GetBindInfo(IInternetBindInfo *iface, DWORD *bindf, BINDINFO *bindinfo)
+{
+    ERR("\n");
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI InstallCallbackBindInfo_GetBindString(IInternetBindInfo *iface, ULONG string_type,
+        WCHAR **strs, ULONG cnt, ULONG *fetched)
+{
+    static const WCHAR wine_addon_downloaderW[] =
+        {'W','i','n','e',' ','A','d','d','o','n',' ','D','o','w','n','l','o','a','d','e','r',0};
+
+    switch(string_type) {
+    case BINDSTRING_USER_AGENT:
+        TRACE("BINDSTRING_USER_AGENT\n");
+
+        *strs = CoTaskMemAlloc(sizeof(wine_addon_downloaderW));
+        if(!*strs)
+            return E_OUTOFMEMORY;
+
+        memcpy(*strs, wine_addon_downloaderW, sizeof(wine_addon_downloaderW));
+        *fetched = 1;
+        return S_OK;
+    }
+
+    return E_NOTIMPL;
+}
+
+static const IInternetBindInfoVtbl InstallCallbackBindInfoVtbl = {
+    InstallCallbackBindInfo_QueryInterface,
+    InstallCallbackBindInfo_AddRef,
+    InstallCallbackBindInfo_Release,
+    InstallCallbackBindInfo_GetBindInfo,
+    InstallCallbackBindInfo_GetBindString
+};
+
+static IInternetBindInfo InstallCallbackBindInfo = { &InstallCallbackBindInfoVtbl };
+
 static void append_url_params( WCHAR *url )
 {
     static const WCHAR arch_formatW[] = {'?','a','r','c','h','='};