diff --git a/src/filemanager.cpp b/src/filemanager.cpp
index e6a9ed9..d85290b 100644
--- a/src/filemanager.cpp
+++ b/src/filemanager.cpp
@@ -48,6 +48,12 @@
 
 #include "proj_config.h"
 
+#if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_APP)
+#define UWP 1
+#else
+#define UWP 0
+#endif
+
 #ifdef _WIN32
 #include <shlobj.h>
 #include <windows.h>
@@ -692,10 +698,21 @@ std::unique_ptr<File> FileWin32::open(PJ_CONTEXT *ctx, const char *filename,
                                      ? FILE_ATTRIBUTE_READONLY
                                      : FILE_ATTRIBUTE_NORMAL;
     try {
+#if UWP
+        CREATEFILE2_EXTENDED_PARAMETERS extendedParameters;
+        ZeroMemory(&extendedParameters, sizeof(extendedParameters));
+        extendedParameters.dwSize = sizeof(extendedParameters);
+        extendedParameters.dwFileAttributes = dwFlagsAndAttributes;
+        HANDLE hFile = CreateFile2(
+            UTF8ToWString(std::string(filename)).c_str(), dwDesiredAccess,
+            FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
+            dwCreationDisposition, &extendedParameters);
+#else // UWP
         HANDLE hFile = CreateFileW(
             UTF8ToWString(std::string(filename)).c_str(), dwDesiredAccess,
             FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, nullptr,
             dwCreationDisposition, dwFlagsAndAttributes, nullptr);
+#endif // UWP
         return std::unique_ptr<File>(hFile != INVALID_HANDLE_VALUE
                                          ? new FileWin32(filename, ctx, hFile)
                                          : nullptr);
@@ -1211,6 +1228,9 @@ const char *proj_context_get_user_writable_directory(PJ_CONTEXT *ctx,
             wPath.resize(wcslen(wPath.data()));
             path = NS_PROJ::WStringToUTF8(wPath);
 #else
+#if UWP
+        if (false) {
+#else // UWP
         wchar_t *wPath;
         if (SHGetKnownFolderPath(FOLDERID_LocalAppData, 0, nullptr, &wPath) ==
             S_OK) {
@@ -1218,6 +1238,7 @@ const char *proj_context_get_user_writable_directory(PJ_CONTEXT *ctx,
             std::string str = NS_PROJ::WStringToUTF8(ws);
             path = str;
             CoTaskMemFree(wPath);
+#endif // UWP
 #endif
         } else {
             const char *local_app_data = getenv("LOCALAPPDATA");
@@ -1311,11 +1332,13 @@ static std::string pj_get_relative_share_proj_internal_no_check() {
 #if defined(_WIN32) || defined(HAVE_LIBDL)
 #ifdef _WIN32
     HMODULE hm = NULL;
+#if !UWP
     if (GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS |
                               GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
                           (LPCSTR)&pj_get_relative_share_proj, &hm) == 0) {
         return std::string();
     }
+#endif // UWP
 
     DWORD path_size = 1024;