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diff --git a/logic/BaseProcess.h b/logic/BaseProcess.h
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+++ b/logic/BaseProcess.h
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+/* Copyright 2013-2015 MultiMC Contributors
+ *
+ * Authors: Orochimarufan <orochimarufan.x3@gmail.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *	 http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+#include <QProcess>
+#include "BaseInstance.h"
+
+/**
+ * @brief the MessageLevel Enum
+ * defines what level a message is
+ */
+namespace MessageLevel
+{
+enum Enum
+{
+	MultiMC, /**< MultiMC Messages */
+	Debug,   /**< Debug Messages */
+	Info,    /**< Info Messages */
+	Message, /**< Standard Messages */
+	Warning, /**< Warnings */
+	Error,   /**< Errors */
+	Fatal,   /**< Fatal Errors */
+	PrePost, /**< Pre/Post Launch command output */
+};
+MessageLevel::Enum getLevel(const QString &levelName);
+}
+
+class BaseProcess: public QProcess
+{
+	Q_OBJECT
+protected:
+	explicit BaseProcess(InstancePtr instance);
+	void init();
+
+public: /* methods */
+	virtual ~BaseProcess() {};
+
+	InstancePtr instance()
+	{
+		return m_instance;
+	}
+
+	void setWorkdir(QString path);
+
+	void killProcess();
+
+	/**
+	 * @brief prepare the process for launch (for multi-stage launch)
+	 */
+	virtual void arm() = 0;
+
+	/**
+	 * @brief launch the armed instance
+	 */
+	virtual void launch() = 0;
+
+	/**
+	 * @brief abort launch
+	 */
+	virtual void abort() = 0;
+
+protected: /* methods */
+	bool preLaunch();
+	bool postLaunch();
+	bool waitForPrePost();
+	QString substituteVariables(const QString &cmd) const;
+
+	virtual QMap<QString, QString> getVariables() const = 0;
+	virtual QString censorPrivateInfo(QString in) = 0;
+	virtual MessageLevel::Enum guessLevel(const QString &message, MessageLevel::Enum defaultLevel) = 0;
+
+signals:
+	/**
+	 * @brief emitted when the Process immediately fails to run
+	 */
+	void launch_failed(InstancePtr);
+
+	/**
+	 * @brief emitted when the PreLaunchCommand fails
+	 */
+	void prelaunch_failed(InstancePtr, int code, QProcess::ExitStatus status);
+
+	/**
+	 * @brief emitted when the PostLaunchCommand fails
+	 */
+	void postlaunch_failed(InstancePtr, int code, QProcess::ExitStatus status);
+
+	/**
+	 * @brief emitted when the process has finished and the PostLaunchCommand was run
+	 */
+	void ended(InstancePtr, int code, QProcess::ExitStatus status);
+
+	/**
+	 * @brief emitted when we want to log something
+	 * @param text the text to log
+	 * @param level the level to log at
+	 */
+	void log(QString text, MessageLevel::Enum level = MessageLevel::MultiMC);
+
+protected slots:
+	void finish(int, QProcess::ExitStatus status);
+	void on_stdErr();
+	void on_stdOut();
+	void on_prepost_stdOut();
+	void on_prepost_stdErr();
+	void logOutput(const QStringList &lines,
+				   MessageLevel::Enum defaultLevel = MessageLevel::Message,
+				   bool guessLevel = true, bool censor = true);
+	void logOutput(QString line,
+				   MessageLevel::Enum defaultLevel = MessageLevel::Message,
+				   bool guessLevel = true, bool censor = true);
+
+protected:
+	InstancePtr m_instance;
+	QString m_err_leftover;
+	QString m_out_leftover;
+	QProcess m_prepostlaunchprocess;
+	bool killed = false;
+};