Small changes and fixes

Dotnet/AppApi/Folders.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Diagnostics;
 using System.IO;
 using System.Runtime.InteropServices;
 using Newtonsoft.Json;
@@ -170,6 +171,7 @@ namespace VRCX
             var result = WinApi.SHParseDisplayName(folderPath, IntPtr.Zero, out pidlFolder, 0, out psfgaoOut);
             if (result != 0)
             {
+                OpenFolderAndSelectItemFallback(path);
                 return;
             }
 
@@ -178,6 +180,7 @@ namespace VRCX
             {
                 // Free the PIDL we allocated earlier if we failed to parse the display name of the file.
                 Marshal.FreeCoTaskMem(pidlFolder);
+                OpenFolderAndSelectItemFallback(path);
                 return;
             }
 
@@ -189,6 +192,10 @@ namespace VRCX
                 // It can select multiple items, but we only need to select one. 
                 WinApi.SHOpenFolderAndSelectItems(pidlFolder, (uint)files.Length, files, 0);
             }
+            catch
+            {
+                OpenFolderAndSelectItemFallback(path);
+            }
             finally
             {
                 // Free the PIDLs we allocated earlier
@@ -196,5 +203,21 @@ namespace VRCX
                 Marshal.FreeCoTaskMem(pidlFile);
             }
         }
+        
+        public void OpenFolderAndSelectItemFallback(string path)
+        {
+            if (!File.Exists(path) && !Directory.Exists(path))
+                return;
+
+            if (Directory.Exists(path))
+            {
+                Process.Start("explorer.exe", path);
+            }
+            else
+            {
+                // open folder with file highlighted
+                Process.Start("explorer.exe", $"/select,\"{path}\"");
+            }
+        }
     }
 }