diff --git a/app/src/main/cpp/emu48-jni.c b/app/src/main/cpp/emu48-jni.c
index a95224a..ca51d2b 100644
--- a/app/src/main/cpp/emu48-jni.c
+++ b/app/src/main/cpp/emu48-jni.c
@@ -408,6 +408,22 @@ JNIEXPORT jint JNICALL Java_org_emulator_forty_eight_NativeLib_onFileOpen(JNIEnv
     _tcscpy(szBufferFilename, stateFilenameUTF8);
 
     chooseCurrentKmlMode = ChooseKmlMode_FILE_OPEN;
+    //TODO
+//    TCHAR * fileScheme = _T("raw:");
+//    TCHAR * urlContentSchemeFound = _tcsstr(szChosenCurrentKml, fileScheme);
+//    if(urlContentSchemeFound) {
+//        _tcscpy(szChosenCurrentKml, szChosenCurrentKml + 4 * sizeof(TCHAR));
+//        _tcscpy(szEmuDirectory, szChosenCurrentKml);
+//        TCHAR * filename = _tcsrchr(szEmuDirectory, _T('/'));
+//        if(filename) {
+//            *filename = _T('\0');
+//        }
+//        _tcscpy(szRomDirectory, szEmuDirectory);
+//    } else {
+//        _tcscpy(szEmuDirectory, "assets/calculators/");
+//        _tcscpy(szRomDirectory, "assets/calculators/");
+//    }
+
     BOOL result = OpenDocument(szBufferFilename);
     if (result)
         MruAdd(szBufferFilename);
diff --git a/app/src/main/cpp/win32-layer.c b/app/src/main/cpp/win32-layer.c
index da2d706..f0a2e2c 100644
--- a/app/src/main/cpp/win32-layer.c
+++ b/app/src/main/cpp/win32-layer.c
@@ -220,6 +220,9 @@ HANDLE CreateFileMapping(HANDLE hFile, LPSECURITY_ATTRIBUTES lpFileMappingAttrib
         handle->handleType = HANDLE_TYPE_FILE_MAPPING_ASSET;
         handle->fileAsset = hFile->fileAsset;
     }
+    if(dwMaximumSizeHigh == 0 && dwMaximumSizeLow == 0) {
+        dwMaximumSizeLow = GetFileSize(hFile, &dwMaximumSizeHigh);
+    }
     handle->fileMappingSize = (dwMaximumSizeHigh << 32) | dwMaximumSizeLow;
     handle->fileMappingAddress = NULL;
     return handle;