#150 The given path's format is not supported

[Basil Voronkov]

System.NotSupportedException: The given path's format is not supported.
at System.Security.Util.StringExpressionSet.CanonicalizePath(String path, Boolean needFullPath)
at System.Security.Util.StringExpressionSet.CreateListFromExpressions(String[] str, Boolean needFullPath)
at System.Security.Permissions.FileIOPermission.AddPathList(FileIOPermissionAccess access, AccessControlActions control, String[] pathListOrig, Boolean checkForDuplicates, Boolean needFullPath, Boolean copyPathList)
at System.Security.Permissions.FileIOPermission..ctor(FileIOPermissionAccess access, AccessControlActions control, String[] pathList, Boolean checkForDuplicates, Boolean needFullPath)
at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options)
at WideStream.DownloadManager.FileSystem.Disk.DiskFileSystem.InternalCreateFile(String qualifier, Nullable`1 length)
at WideStream.DownloadManager.FileSystem.Disk.DiskFileSystem.CreateFile(String qualifier)
at WideStream.DownloadManager.Network.DownloadProcess.CreateFile()
at WideStream.DownloadManager.Network.DownloadProcess.InitialStart(Boolean restart)
at WideStream.DownloadManager.Network.DownloadProcess.InitialStart(Boolean restart)
at WideStream.DownloadManager.Network.DownloadProcess.<Start>b__4()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()