diff --git a/src/Components/Modules/Flags.cpp b/src/Components/Modules/Flags.cpp
index 2c471dfc..e3139910 100644
--- a/src/Components/Modules/Flags.cpp
+++ b/src/Components/Modules/Flags.cpp
@@ -6,9 +6,15 @@ namespace Components
 
 	bool Flags::HasFlag(const std::string& flag)
 	{
-		Flags::ParseFlags();
+		static auto parsed = false;
 
-		for (auto entry : Flags::EnabledFlags)
+		if (!parsed)
+		{
+			Flags::ParseFlags();
+			parsed = true;
+		}
+
+		for (const auto& entry : Flags::EnabledFlags)
 		{
 			if (Utils::String::ToLower(entry) == Utils::String::ToLower(flag))
 			{
@@ -21,21 +27,20 @@ namespace Components
 
 	void Flags::ParseFlags()
 	{
-		static bool flagsParsed = false;
-		if (flagsParsed) return;
-		flagsParsed = true;
-
 		int numArgs;
-		LPWSTR* argv = CommandLineToArgvW(GetCommandLineW(), &numArgs);
+		auto* const argv = CommandLineToArgvW(GetCommandLineW(), &numArgs);
+
+		assert(Flags::EnabledFlags.empty());
 
 		if (argv)
 		{
-			for (int i = 0; i < numArgs; ++i)
+			for (auto i = 0; i < numArgs; ++i)
 			{
 				std::wstring wFlag(argv[i]);
 				if (wFlag[0] == L'-')
 				{
-					Flags::EnabledFlags.push_back(std::string(++wFlag.begin(), wFlag.end()));
+					wFlag.erase(wFlag.begin());
+					Flags::EnabledFlags.push_back(Utils::String::Convert(wFlag));
 				}
 			}
 
@@ -51,11 +56,5 @@ namespace Components
 
 	Flags::Flags()
 	{
-		Flags::ParseFlags();
-	}
-
-	Flags::~Flags()
-	{
-		Flags::EnabledFlags.clear();
 	}
 }
diff --git a/src/Components/Modules/Flags.hpp b/src/Components/Modules/Flags.hpp
index 823a5ee9..ec35f350 100644
--- a/src/Components/Modules/Flags.hpp
+++ b/src/Components/Modules/Flags.hpp
@@ -6,7 +6,6 @@ namespace Components
 	{
 	public:
 		Flags();
-		~Flags();
 
 		static bool HasFlag(const std::string& flag);
 
diff --git a/src/Utils/String.cpp b/src/Utils/String.cpp
index 85a00e90..422a9158 100644
--- a/src/Utils/String.cpp
+++ b/src/Utils/String.cpp
@@ -103,30 +103,58 @@ namespace Utils
 			return _isspace_l(c, nullptr);
 		}
 
-		// trim from start
-		std::string &LTrim(std::string &s)
+		// Trim from start
+		std::string& LTrim(std::string& str)
 		{
-			s.erase(s.begin(), std::find_if(s.begin(), s.end(), [](int val)
+			str.erase(str.begin(), std::find_if(str.begin(), str.end(), [](int val)
 			{
 				return !IsSpace(val);
 			}));
-			return s;
+
+			return str;
 		}
 
-		// trim from end
-		std::string &RTrim(std::string &s)
+		// Trim from end
+		std::string& RTrim(std::string& str)
 		{
-			s.erase(std::find_if(s.rbegin(), s.rend(), [](int val)
+			str.erase(std::find_if(str.rbegin(), str.rend(), [](int val)
 			{
 				return !IsSpace(val);
-			}).base(), s.end());
-			return s;
+			}).base(), str.end());
+
+			return str;
 		}
 
-		// trim from both ends
-		std::string &Trim(std::string &s)
+		// Trim from both ends
+		std::string& Trim(std::string& str)
 		{
-			return LTrim(RTrim(s));
+			return LTrim(RTrim(str));
+		}
+
+		std::string Convert(const std::wstring& wstr)
+		{
+			std::string result;
+			result.reserve(wstr.size());
+
+			for (const auto& chr : wstr)
+			{
+				result.push_back(static_cast<char>(chr));
+			}
+
+			return result;
+		}
+
+		std::wstring Convert(const std::string& str)
+		{
+			std::wstring result;
+			result.reserve(str.size());
+
+			for (const auto& chr : str)
+			{
+				result.push_back(static_cast<wchar_t>(chr));
+			}
+
+			return result;
 		}
 
 		std::string FormatTimeSpan(int milliseconds)
diff --git a/src/Utils/String.hpp b/src/Utils/String.hpp
index 3beed27e..0da5f00b 100644
--- a/src/Utils/String.hpp
+++ b/src/Utils/String.hpp
@@ -79,11 +79,14 @@ namespace Utils
 		std::string ToUpper(std::string input);
 		bool EndsWith(const std::string& haystack, const std::string& needle);
 		std::vector<std::string> Split(const std::string& str, const char delim);
-		void Replace(std::string &string, const std::string& find, const std::string& replace);
+		void Replace(std::string& string, const std::string& find, const std::string& replace);
 		bool StartsWith(const std::string& haystack, const std::string& needle);
-		std::string &LTrim(std::string &s);
-		std::string &RTrim(std::string &s);
-		std::string &Trim(std::string &s);
+		std::string& LTrim(std::string& str);
+		std::string& RTrim(std::string& str);
+		std::string& Trim(std::string& str);
+
+		std::string Convert(const std::wstring& wstr);
+		std::wstring Convert(const std::string& str);
 
 		std::string FormatTimeSpan(int milliseconds);
 		std::string FormatBandwidth(size_t bytes, int milliseconds);
diff --git a/src/Utils/Utils.cpp b/src/Utils/Utils.cpp
index c5b51538..dd84caca 100644
--- a/src/Utils/Utils.cpp
+++ b/src/Utils/Utils.cpp
@@ -10,7 +10,7 @@ namespace Utils
 		if (mimeType)
 		{
 			std::wstring wMimeType(mimeType);
-			return std::string(wMimeType.begin(), wMimeType.end());
+			return String::Convert(wMimeType);
 		}
 
 		return "application/octet-stream";
diff --git a/src/Utils/WebIO.cpp b/src/Utils/WebIO.cpp
index bd5d36e5..b9189215 100644
--- a/src/Utils/WebIO.cpp
+++ b/src/Utils/WebIO.cpp
@@ -396,7 +396,7 @@ namespace Utils
 		return false;
 	}
 
-	void WebIO::formatPath(std::string &path, bool win)
+	void WebIO::formatPath(std::string& path, bool win)
 	{
 		size_t nPos;
 		std::string find = "\\";
@@ -408,7 +408,7 @@ namespace Utils
 			replace = "\\";
 		}
 
-		while ((nPos = path.find(find)) != std::wstring::npos)
+		while ((nPos = path.find(find)) != std::string::npos)
 		{
 			path = path.replace(nPos, find.length(), replace);
 		}
@@ -445,7 +445,7 @@ namespace Utils
 		return (FtpRenameFileA(this->hConnect, directory.data(), newDir.data()) == TRUE); // According to the internetz, this should work
 	}
 
-	bool WebIO::listElements(const std::string& directory, std::vector<std::string> &list, bool files)
+	bool WebIO::listElements(const std::string& directory, std::vector<std::string>& list, bool files)
 	{
 		list.clear();
 
@@ -483,12 +483,12 @@ namespace Utils
 		return result;
 	}
 
-	bool WebIO::listDirectories(const std::string& directory, std::vector<std::string> &list)
+	bool WebIO::listDirectories(const std::string& directory, std::vector<std::string>& list)
 	{
 		return this->listElements(directory, list, false);
 	}
 
-	bool WebIO::listFiles(const std::string& directory, std::vector<std::string> &list)
+	bool WebIO::listFiles(const std::string& directory, std::vector<std::string>& list)
 	{
 		return this->listElements(directory, list, true);
 	}
@@ -532,7 +532,7 @@ namespace Utils
 		return result;
 	}
 
-	bool WebIO::downloadFileData(const std::string& file, std::string &data)
+	bool WebIO::downloadFileData(const std::string& file, std::string& data)
 	{
 		data.clear();
 
diff --git a/src/Utils/WebIO.hpp b/src/Utils/WebIO.hpp
index b272fdbe..07af0c0f 100644
--- a/src/Utils/WebIO.hpp
+++ b/src/Utils/WebIO.hpp
@@ -51,8 +51,8 @@ namespace Utils
 		bool deleteDirectory(const std::string& directory);
 		bool renameDirectory(const std::string& directory, const std::string& newDir);
 
-		bool listDirectories(const std::string& directory, std::vector<std::string> &list);
-		bool listFiles(const std::string& directory, std::vector<std::string> &list);
+		bool listDirectories(const std::string& directory, std::vector<std::string>& list);
+		bool listFiles(const std::string& directory, std::vector<std::string>& list);
 
 		bool deleteFile(const std::string& file);
 		bool renameFile(const std::string& file, const std::string& newFile);
@@ -60,7 +60,7 @@ namespace Utils
 		bool downloadFile(const std::string& file, const std::string& localfile);
 
 		bool uploadFileData(const std::string& file,const std::string& data);
-		bool downloadFileData(const std::string& file, std::string &data);
+		bool downloadFileData(const std::string& file, std::string& data);
 
 		void setProgressCallback(Utils::Slot<void(size_t, size_t)> callback);
 		void cancelDownload() { this->cancel = true; }
@@ -104,7 +104,7 @@ namespace Utils
 
 		std::string execute(const char* command, const std::string& body, WebIO::Params headers = WebIO::Params(), bool* success = nullptr);
 
-		bool listElements(const std::string& directory, std::vector<std::string> &list, bool files);
+		bool listElements(const std::string& directory, std::vector<std::string>& list, bool files);
 
 		void openSession(const std::string& useragent);
 		void closeSession();
@@ -112,6 +112,6 @@ namespace Utils
 		bool openConnection();
 		void closeConnection();
 
-		void formatPath(std::string &path, bool win); /* if (win == true):  / -> \\ */
+		void formatPath(std::string& path, bool win); /* if (win == true):  / -> \\ */
 	};
 }