diff --git a/ports/libsndfile/CONTROL b/ports/libsndfile/CONTROL
index 67e058991f..70be2ab6c3 100644
--- a/ports/libsndfile/CONTROL
+++ b/ports/libsndfile/CONTROL
@@ -1,4 +1,4 @@
 Source: libsndfile
-Version: 1.0.29-6830c42-1
+Version: 1.0.29-6830c42-2
 Description: Library to read, write and manipulate many soundfile types. Authored by Eric de Castro Lopo
 Build-Depends: libogg, libflac, libvorbis
diff --git a/ports/libsndfile/portfile.cmake b/ports/libsndfile/portfile.cmake
index ac07f96a0b..daa7de3ae7 100644
--- a/ports/libsndfile/portfile.cmake
+++ b/ports/libsndfile/portfile.cmake
@@ -19,6 +19,13 @@ vcpkg_download_distfile(ARCHIVE
 )
 vcpkg_extract_source_archive(${ARCHIVE})
 
+vcpkg_apply_patches(
+	SOURCE_PATH ${CURRENT_BUILDTREES_DIR}/src/libsndfile-6830c421899e32f8d413a903a21a9b6cf384d369
+	PATCHES
+		"${CMAKE_CURRENT_LIST_DIR}/uwp-createfile-getfilesize.patch"
+		"${CMAKE_CURRENT_LIST_DIR}/uwp-createfile-getfilesize-addendum.patch"
+)
+
 if (VCPKG_CRT_LINKAGE STREQUAL "dynamic")
     set(CRT_LIB_STATIC 0)
 elseif (VCPKG_CRT_LINKAGE STREQUAL "static")
diff --git a/ports/libsndfile/uwp-createfile-getfilesize-addendum.patch b/ports/libsndfile/uwp-createfile-getfilesize-addendum.patch
new file mode 100644
index 0000000000..62e6b1131f
--- /dev/null
+++ b/ports/libsndfile/uwp-createfile-getfilesize-addendum.patch
@@ -0,0 +1,13 @@
+diff --git a/src/file_io.c b/src/file_io.c
+index 47351bc..54741c9 100644
+--- a/src/file_io.c
++++ b/src/file_io.c
+@@ -799,6 +799,8 @@ psf_open_handle (PSF_FILE * pfile)
+ 
+ 	if (handle == INVALID_HANDLE_VALUE)
+ 		return NULL;
++
++	return handle;
+ #else
+ 	if (pfile->use_wchar)
+ 		handle = CreateFileW (
diff --git a/ports/libsndfile/uwp-createfile-getfilesize.patch b/ports/libsndfile/uwp-createfile-getfilesize.patch
new file mode 100644
index 0000000000..0e60cde545
--- /dev/null
+++ b/ports/libsndfile/uwp-createfile-getfilesize.patch
@@ -0,0 +1,58 @@
+diff --git a/src/file_io.c b/src/file_io.c
+index 7cf8f0c..47351bc 100644
+--- a/src/file_io.c
++++ b/src/file_io.c
+@@ -787,6 +787,19 @@ psf_open_handle (PSF_FILE * pfile)
+ 				return NULL ;
+ 		} ;
+ 
++#if defined (WINAPI_FAMILY_PARTITION) && !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP | WINAPI_PARTITION_SYSTEM)
++	if (!pfile->use_wchar)
++		return NULL;
++
++	CREATEFILE2_EXTENDED_PARAMETERS cfParams = {0};
++	cfParams.dwSize = sizeof(CREATEFILE2_EXTENDED_PARAMETERS);
++	cfParams.dwFileAttributes = FILE_ATTRIBUTE_NORMAL;
++
++	handle = CreateFile2(pfile->path.wc, dwDesiredAccess, dwShareMode, dwCreationDistribution, &cfParams);
++
++	if (handle == INVALID_HANDLE_VALUE)
++		return NULL;
++#else
+ 	if (pfile->use_wchar)
+ 		handle = CreateFileW (
+ 					pfile->path.wc,				/* pointer to name of the file */
+@@ -812,6 +825,7 @@ psf_open_handle (PSF_FILE * pfile)
+ 		return NULL ;
+ 
+ 	return handle ;
++#endif
+ } /* psf_open_handle */
+ 
+ /* USE_WINDOWS_API */ static void
+@@ -1104,7 +1118,16 @@ psf_is_pipe (SF_PRIVATE *psf)
+ 
+ /* USE_WINDOWS_API */ sf_count_t
+ psf_get_filelen_handle (HANDLE handle)
+-{	sf_count_t filelen ;
++{
++#if defined (WINAPI_FAMILY_PARTITION) && !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP | WINAPI_PARTITION_SYSTEM)
++	LARGE_INTEGER size;
++
++	if (!GetFileSizeEx(handle, &size) && GetLastError() != NO_ERROR)
++		return (sf_count_t) -1 ;
++
++	return size.QuadPart;
++#else
++	sf_count_t filelen ;
+ 	DWORD dwFileSizeLow, dwFileSizeHigh, dwError = NO_ERROR ;
+ 
+ 	dwFileSizeLow = GetFileSize (handle, &dwFileSizeHigh) ;
+@@ -1118,6 +1141,7 @@ psf_get_filelen_handle (HANDLE handle)
+ 	filelen = dwFileSizeLow + ((__int64) dwFileSizeHigh << 32) ;
+ 
+ 	return filelen ;
++#endif
+ } /* psf_get_filelen_handle */
+ 
+ /* USE_WINDOWS_API */ void