Dispose of process correctly in AttachmentExtractor

MediaBrowser.MediaEncoding/Attachments/AttachmentExtractor.cs

@@ -164,12 +164,11 @@ namespace MediaBrowser.MediaEncoding.Attachments
                 WindowStyle = ProcessWindowStyle.Hidden,
                 ErrorDialog = false
             };
-            var process = new Process
-            {
-                StartInfo = startInfo,
-                EnableRaisingEvents = true
-            };
 
+            int exitCode;
+
+            using (var process = new Process { StartInfo = startInfo, EnableRaisingEvents = true })
+            {
                 _logger.LogInformation("{File} {Arguments}", process.StartInfo.FileName, process.StartInfo.Arguments);
 
                 process.Start();
@@ -189,9 +188,8 @@ namespace MediaBrowser.MediaEncoding.Attachments
                     }
                 }
 
-            var exitCode = ranToCompletion ? process.ExitCode : -1;
-
-            process.Dispose();
+                exitCode = ranToCompletion ? process.ExitCode : -1;
+            }
 
             var failed = false;