AlphaVSS and Dispose()?

[VladimirK69]

My goal is to read SQL Server's files (mdf/ldf) with AlphaVSS and to remove snapshot after that (if I understand it correctly). So my code (based on example) in object's constructor

    private readonly VssBackup Vss;
    private readonly Stream VssStream;
...
          Vss = new VssBackup();
          Vss.Setup(Path.GetPathRoot(fileName));
          VssStream = Vss.GetStream(fileName);
          Length = VssStream.Length;

and in destructor

          VssStream.Close();
          Vss.Dispose();

Without Dispose it works without exceptions, but Delete for snapshot never called. With Dispose() I have "System.NullReferenceException: 'Object reference not set to an instance of an object.'" in Snapshot.cs

      public void Delete()
      {
         _backup.DeleteSnapshotSet(_set_id, false);
      }

Am I need to use Dispose and is everything OK with code?

[alphaleonis]

I think you need to provide more of your code, since I can't see what's going wrong from the bits you posted unfortunately.

[VladimirK69]

I tried to create new demo project based on Example2 from AlphaVSS-Samples-develop
VssDispose.zip
but this time I have error "System.ArgumentException: 'Paths that begin with \?\GlobalRoot are internal to the kernel and should not be opened by managed applications.'" on VssStream = Vss.GetStream(openFileDialog1.FileName);
But somehow that part works in my original project that had previous AplhaVSS and AlphaFS (even without it and AlphaVSS.Native.NetFx.2.0.0, in installed NuGet packages only AplhaVSS) updated to recent version. I can only guess it takes something from cache maybe.

[VladimirK69]

In original project exceptions on Dispose it seems fixed after I deleted ".vs" folder and rebuild project.

[stale]

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