System.Data.SQLite

        Lowest = 0x1,
        Lower = 0x2,
        Low = 0x4,
        Medium = 0x8,
        High = 0x10,
        Higher = 0x20,
        Highest = 0x40,
        Debug = Medium, /* NOTE: Default for debug messages. */
        Trace = Medium  /* NOTE: Default for trace messages. */
    }
    #endregion

    ///////////////////////////////////////////////////////////////////////////

    #region Installer Class
    internal static class Installer

            public static void DebugCore(
                string message,
                string category
                )
            {
                lock (syncRoot)
                {
#if DEBUG
                    //
                    // NOTE: Write the message to all the active debug
                    //       listeners.
                    //
                    Debug.WriteLine(message, category);
                    Debug.Flush();
#else
                    //
                    // NOTE: For a build without "DEBUG" defined, we cannot
                    //       simply use the Debug class (i.e. it will do
                    //       nothing); therefore, use the console directly
                    //       instead.
                    //




                    Console.WriteLine(String.Format("{1}: {0}", message,
                        category));
#endif
                }
            }

            ///////////////////////////////////////////////////////////////////

            public static void TraceCore(
                string message,
                string category
                )
            {
                lock (syncRoot)
                {
                    //
                    // NOTE: Write the message to all the active trace
                    //       listeners.
                    //
                    Trace.WriteLine(message, category);
                    Trace.Flush();
                }
            }

            ///////////////////////////////////////////////////////////////////

                    //
                    // NOTE: If not specified, use the default debug callback.
                    //
                    if (debugCallback == null)
                        debugCallback = DebugCore;

                    //
                    // NOTE: Invoke the debug callback with the formatted
                    //       message and the category specified by the
                    //       caller.
                    //
                    debugCallback(formatted, category);
                }

                //
                // NOTE: If the trace priority of this message is less than
                //       what we currently want to trace, skip it.
                //
                if (tracePriority >= TracePriority)
                {
                    //
                    // NOTE: If not specified, use the default trace callback.
                    //
                    if (traceCallback == null)
                        traceCallback = TraceCore;

                    //
                    // NOTE: Invoke the trace callback with the formatted
                    //       message and the category specified by the
                    //       caller.
                    //
                    traceCallback(formatted, category);
                }

                return message;
            }
            #endregion

            #region IDisposable "Pattern" Members
            private bool disposed;
            private void CheckDisposed() /* throw */
            {
                if (!disposed)
                    return;

                throw new ObjectDisposedException(
                    typeof(MockRegistryKey).Name);
            }

            ///////////////////////////////////////////////////////////////////

            private /* protected virtual */ void Dispose(
                bool disposing
                )

                bool verbose
                )
            {
                if (rootKey == null)
                    return null;

                if (verbose)
                    TraceOps.DebugAndTrace(writable ?
                        TracePriority.Highest : TracePriority.Higher,
                        debugCallback, traceCallback, String.Format(
                        "rootKey = {0}, subKeyName = {1}, writable = {2}",
                        ForDisplay(rootKey), ForDisplay(subKeyName),
                        ForDisplay(writable)), traceCategory);

                //
                // HACK: Always forbid writable access when operating in

            {
                if (rootKey == null)
                    return null;

                if (verbose)
                    TraceOps.DebugAndTrace(TracePriority.Highest,
                        debugCallback, traceCallback, String.Format(
                        "rootKey = {0}, subKeyName = {1}",
                        ForDisplay(rootKey), ForDisplay(subKeyName)),
                        traceCategory);

                try
                {
                    //
                    // HACK: Always open a key, rather than creating one when
                    //       operating in 'what-if' mode.
                    //
                    if (whatIf)
                    {
                        //
                        // HACK: Attempt to open the specified sub-key.  If
                        //       this fails, we will simply return the root
                        //       key itself since no writes are allowed in
                        //       'what-if' mode anyhow.
                        //
                        MockRegistryKey key = rootKey.OpenSubKey(subKeyName);

                        return (key != null) ?
                            key : new MockRegistryKey(
                                rootKey, subKeyName, true, false, false);

            {
                if (rootKey == null)
                    return;

                if (verbose)
                    TraceOps.DebugAndTrace(TracePriority.Highest,
                        debugCallback, traceCallback, String.Format(
                        "rootKey = {0}, subKeyName = {1}",
                        ForDisplay(rootKey), ForDisplay(subKeyName)),
                        traceCategory);

                if (!whatIf)
                    rootKey.DeleteSubKey(subKeyName);

                subKeysDeleted++;
            }

            {
                if (rootKey == null)
                    return;

                if (verbose)
                    TraceOps.DebugAndTrace(TracePriority.Highest,
                        debugCallback, traceCallback, String.Format(
                        "rootKey = {0}, subKeyName = {1}",
                        ForDisplay(rootKey), ForDisplay(subKeyName)),
                        traceCategory);

                if (!whatIf)
                    rootKey.DeleteSubKeyTree(subKeyName);

                subKeysDeleted++;
            }

            {
                if (key == null)
                    return;

                if (verbose)
                    TraceOps.DebugAndTrace(TracePriority.Highest,
                        debugCallback, traceCallback, String.Format(
                        "key = {0}, name = {1}, value = {2}",
                        ForDisplay(key), ForDisplay(name), ForDisplay(value)),
                        traceCategory);

                if (!whatIf)
                    key.SetValue(name, value);

                keyValuesSet++;
            }

                    int length = args.Length;

                    for (int index = 0; index < length; index++)
                    {
                        string arg = args[index];

                        //
                        // NOTE: Skip any argument that is null (?) or an empty
                        //       string.
                        //
                        if (String.IsNullOrEmpty(arg))
                            continue;

                        //
                        // NOTE: We are going to modify the original argument
                        //       by removing any leading option characters;
                        //       therefore, we use a new string to hold the
                        //       modified argument.
                        //
                        string newArg = arg;

                        //
                        // NOTE: All the supported command line options must
                        //       begin with an option character (e.g. a minus
                        //       or forward slash); attempt to validate that
                        //       now.  If we fail in strict mode, we are done;
                        //       otherwise, just skip this argument and advance
                        //       to the next one.
                        //
                        if (!CheckOption(ref newArg))
                        {
                            error = TraceOps.DebugAndTrace(
                                TracePriority.Lowest, debugCallback,
                                traceCallback, String.Format(
                                "Unsupported command line argument: {0}",
                                ForDisplay(arg)), traceCategory);

                            if (strict)
                                return false;

                            continue;
                        }

                            //
                            // NOTE: All the supported command line options must
                            //       have a value; therefore, attempt to advance
                            //       to it now.  If we fail, we are done.
                            //
                            index++;

                                    if (strict)
                                        return false;

                                    continue;
                                }

                                //
                            // NOTE: Allow the command line arguments to
                            //       override the "strictness" setting
                            //       provided by our caller.
                                //
                                strict = (bool)value;
                            }
                            else if (MatchOption(newArg, "logFileName"))
                            {
                                configuration.logFileName = text;
                            }

                            {
                                error = TraceOps.DebugAndTrace(
                                    TracePriority.Lowest, debugCallback,
                                    traceCallback, String.Format(
                                    "Unsupported command line option: {0}",
                                    ForDisplay(arg)), traceCategory);













                            if (strict)
                                return false;
                        }
                    }

                    return true;
                }

            if (!Configuration.FromArgs(
                    args, true, ref configuration, ref error) ||
                !Configuration.Process(
                    args, configuration, true, ref error) ||
                !Configuration.CheckRuntimeVersion(
                    configuration, true, ref error))
            {
                TraceOps.ShowMessage(TracePriority.Highest,
                    debugCallback, traceCallback, thisAssembly,
                    error, traceCategory, MessageBoxButtons.OK,
                    MessageBoxIcon.Error);

                return 1; /* FAILURE */
            }
            #endregion

            ///////////////////////////////////////////////////////////////////