diff --git a/dlls/windowscodecs/proxy.c b/dlls/windowscodecs/proxy.c
index 68f0effee02..150983f9c41 100644
--- a/dlls/windowscodecs/proxy.c
+++ b/dlls/windowscodecs/proxy.c
@@ -36,6 +36,54 @@
 
 WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
 
+HRESULT WINAPI IWICBitmapCodecInfo_GetContainerFormat_Proxy_W(IWICBitmapCodecInfo *iface,
+    GUID *pguidContainerFormat)
+{
+    return IWICBitmapCodecInfo_GetContainerFormat(iface, pguidContainerFormat);
+}
+
+HRESULT WINAPI IWICBitmapCodecInfo_GetDeviceManufacturer_Proxy_W(IWICBitmapCodecInfo *iface,
+    UINT cchDeviceManufacturer, WCHAR *wzDeviceManufacturer, UINT *pcchActual)
+{
+    return IWICBitmapCodecInfo_GetDeviceManufacturer(iface, cchDeviceManufacturer, wzDeviceManufacturer, pcchActual);
+}
+
+HRESULT WINAPI IWICBitmapCodecInfo_GetDeviceModels_Proxy_W(IWICBitmapCodecInfo *iface,
+    UINT cchDeviceModels, WCHAR *wzDeviceModels, UINT *pcchActual)
+{
+    return IWICBitmapCodecInfo_GetDeviceModels(iface, cchDeviceModels, wzDeviceModels, pcchActual);
+}
+
+HRESULT WINAPI IWICBitmapCodecInfo_GetMimeTypes_Proxy_W(IWICBitmapCodecInfo *iface,
+    UINT cchMimeTypes, WCHAR *wzMimeTypes, UINT *pcchActual)
+{
+    return IWICBitmapCodecInfo_GetMimeTypes(iface, cchMimeTypes, wzMimeTypes, pcchActual);
+}
+
+HRESULT WINAPI IWICBitmapCodecInfo_GetFileExtensions_Proxy_W(IWICBitmapCodecInfo *iface,
+    UINT cchFileExtensions, WCHAR *wzFileExtensions, UINT *pcchActual)
+{
+    return IWICBitmapCodecInfo_GetFileExtensions(iface, cchFileExtensions, wzFileExtensions, pcchActual);
+}
+
+HRESULT WINAPI IWICBitmapCodecInfo_DoesSupportAnimation_Proxy_W(IWICBitmapCodecInfo *iface,
+    BOOL *pfSupportAnimation)
+{
+    return IWICBitmapCodecInfo_DoesSupportAnimation(iface, pfSupportAnimation);
+}
+
+HRESULT WINAPI IWICBitmapCodecInfo_DoesSupportLossless_Proxy_W(IWICBitmapCodecInfo *iface,
+    BOOL *pfSupportLossless)
+{
+    return IWICBitmapCodecInfo_DoesSupportLossless(iface, pfSupportLossless);
+}
+
+HRESULT WINAPI IWICBitmapCodecInfo_DoesSupportMultiframe_Proxy_W(IWICBitmapCodecInfo *iface,
+    BOOL *pfSupportMultiframe)
+{
+    return IWICBitmapCodecInfo_DoesSupportMultiframe(iface, pfSupportMultiframe);
+}
+
 HRESULT WINAPI IWICBitmapFlipRotator_Initialize_Proxy_W(IWICBitmapFlipRotator *iface,
     IWICBitmapSource *pISource, WICBitmapTransformOptions options)
 {
diff --git a/dlls/windowscodecs/windowscodecs.spec b/dlls/windowscodecs/windowscodecs.spec
index 37c365c2a53..aecd87f528f 100644
--- a/dlls/windowscodecs/windowscodecs.spec
+++ b/dlls/windowscodecs/windowscodecs.spec
@@ -6,14 +6,14 @@
 @ stub IEnumString_Reset_WIC_Proxy
 @ stub IPropertyBag2_Write_Proxy
 @ stub IWICBitmapClipper_Initialize_Proxy
-@ stub IWICBitmapCodecInfo_DoesSupportAnimation_Proxy
-@ stub IWICBitmapCodecInfo_DoesSupportLossless_Proxy
-@ stub IWICBitmapCodecInfo_DoesSupportMultiframe_Proxy
-@ stub IWICBitmapCodecInfo_GetContainerFormat_Proxy
-@ stub IWICBitmapCodecInfo_GetDeviceManufacturer_Proxy
-@ stub IWICBitmapCodecInfo_GetDeviceModels_Proxy
-@ stub IWICBitmapCodecInfo_GetFileExtensions_Proxy
-@ stub IWICBitmapCodecInfo_GetMimeTypes_Proxy
+@ stdcall IWICBitmapCodecInfo_DoesSupportAnimation_Proxy(ptr ptr) IWICBitmapCodecInfo_DoesSupportAnimation_Proxy_W
+@ stdcall IWICBitmapCodecInfo_DoesSupportLossless_Proxy(ptr ptr) IWICBitmapCodecInfo_DoesSupportLossless_Proxy_W
+@ stdcall IWICBitmapCodecInfo_DoesSupportMultiframe_Proxy(ptr ptr) IWICBitmapCodecInfo_DoesSupportMultiframe_Proxy_W
+@ stdcall IWICBitmapCodecInfo_GetContainerFormat_Proxy(ptr ptr) IWICBitmapCodecInfo_GetContainerFormat_Proxy_W
+@ stdcall IWICBitmapCodecInfo_GetDeviceManufacturer_Proxy(ptr long ptr ptr) IWICBitmapCodecInfo_GetDeviceManufacturer_Proxy_W
+@ stdcall IWICBitmapCodecInfo_GetDeviceModels_Proxy(ptr long ptr ptr) IWICBitmapCodecInfo_GetDeviceModels_Proxy_W
+@ stdcall IWICBitmapCodecInfo_GetFileExtensions_Proxy(ptr long ptr ptr) IWICBitmapCodecInfo_GetFileExtensions_Proxy_W
+@ stdcall IWICBitmapCodecInfo_GetMimeTypes_Proxy(ptr long ptr ptr) IWICBitmapCodecInfo_GetMimeTypes_Proxy_W
 @ stub IWICBitmapDecoder_CopyPalette_Proxy
 @ stub IWICBitmapDecoder_GetColorContexts_Proxy
 @ stub IWICBitmapDecoder_GetDecoderInfo_Proxy