diff --git a/winixd/core/request.cpp b/winixd/core/request.cpp
index 6545957..e0bb1c5 100644
--- a/winixd/core/request.cpp
+++ b/winixd/core/request.cpp
@@ -541,6 +541,90 @@ const std::wstring & Request::ParamValue(const std::wstring & param_name)
 }
 
 
+void Request::AddParam(const std::wstring & param_name, const std::wstring & param_value)
+{
+	bool found = false;
+	ParamTab::iterator i;
+
+	for(i=param_tab.begin() ; i!=param_tab.end() ; ++i)
+	{
+		if( i->name == param_name )
+		{
+			i->value = param_value;
+			found = true;
+		}
+	}
+
+	if( !found )
+	{
+		Param param;
+		param.name = param_name;
+		param.value = param_value;
+		param_tab.push_back(param);
+	}
+}
+
+
+void Request::AddParam(const wchar_t * param_name, const wchar_t * param_value)
+{
+	bool found = false;
+	ParamTab::iterator i;
+
+	for(i=param_tab.begin() ; i!=param_tab.end() ; ++i)
+	{
+		if( i->name == param_name )
+		{
+			i->value = param_value;
+			found = true;
+		}
+	}
+
+	if( !found )
+	{
+		Param param;
+		param.name = param_name;
+		param.value = param_value;
+		param_tab.push_back(param);
+	}
+}
+
+
+void Request::RemoveParam(const wchar_t * param_name)
+{
+	ParamTab::iterator i;
+
+	for(size_t i=0 ; i < param_tab.size() ; )
+	{
+		if( param_tab[i].name == param_name )
+		{
+			param_tab.erase(param_tab.begin() + i);
+		}
+		else
+		{
+			++i;
+		}
+	}
+}
+
+
+void Request::RemoveParam(const std::wstring & param_name)
+{
+	ParamTab::iterator i;
+
+	for(size_t i=0 ; i < param_tab.size() ; )
+	{
+		if( param_tab[i].name == param_name )
+		{
+			param_tab.erase(param_tab.begin() + i);
+		}
+		else
+		{
+			++i;
+		}
+	}
+}
+
+
 
 
 void Request::current_dir(morm::Wrapper & wrapper)
diff --git a/winixd/core/request.h b/winixd/core/request.h
index 9f7f082..1103002 100644
--- a/winixd/core/request.h
+++ b/winixd/core/request.h
@@ -437,6 +437,12 @@ public:
 	std::wstring * ParamValuep(const wchar_t * param_name);           // returns nullptr if there is no such a parameter
 	std::wstring * ParamValuep(const std::wstring & param_name);      // returns nullptr if there is no such a parameter
 
+	void AddParam(const std::wstring & param_name, const std::wstring & param_value);
+	void AddParam(const wchar_t * param_name, const wchar_t * param_value);
+
+	void RemoveParam(const wchar_t * param_name);
+	void RemoveParam(const std::wstring & param_name);
+
 	bool IsPostVar(const wchar_t * var);
 	bool IsPostVar(const std::wstring & var);
 	const std::wstring & PostVar(const wchar_t * var);				// returns an empty string if there is no such a parameter