diff --git a/core/app.cpp b/core/app.cpp
index a71c10e..8f9a04d 100755
--- a/core/app.cpp
+++ b/core/app.cpp
@@ -7,8 +7,8 @@
  * 
  */
  
-#include <sys/types.h>
-#include <pwd.h>
+#include <sys/types.h>
+#include <pwd.h>
 #include <grp.h>
 #include <unistd.h>
 
@@ -723,16 +723,16 @@ Error status     = request.status;
 
 void App::LogUser(const char * msg, uid_t id)
 {
-	log << log3 << msg << " ";
-
-	passwd * p = getpwuid(id);
-	
-	if( p )
-		log << p->pw_name;
-	else
-		log << id;
-
-	log << logend;
+	log << log3 << msg << " ";
+
+	passwd * p = getpwuid(id);
+	
+	if( p )
+		log << p->pw_name;
+	else
+		log << id;
+
+	log << logend;
 }
 
 
@@ -740,104 +740,104 @@ void App::LogGroup(const char * msg, gid_t id, bool put_logend)
 {
 	log << log3 << msg << " ";
 
-	group * g = getgrgid(id);
-
-	if( g )
-		log << g->gr_name;
-	else
-		log << (int)id;
-
-	if( put_logend )
-		log << logend;
+	group * g = getgrgid(id);
+
+	if( g )
+		log << g->gr_name;
+	else
+		log << (int)id;
+
+	if( put_logend )
+		log << logend;
 }
 
 
 void App::LogUsers()
 {
-uid_t eid, rid;
-	
-	eid = geteuid();
-	rid = getuid();
-
-	if( eid == rid )
-	{
-		LogUser("App: effective/real user:", eid);
-	}
-	else
-	{
-		LogUser("App: effective user:", eid);
-		LogUser("App: real user:",      rid);
-	}
+uid_t eid, rid;
+	
+	eid = geteuid();
+	rid = getuid();
+
+	if( eid == rid )
+	{
+		LogUser("App: effective/real user:", eid);
+	}
+	else
+	{
+		LogUser("App: effective user:", eid);
+		LogUser("App: real user:",      rid);
+	}
 }
 
 
 
-void App::LogEffectiveGroups(std::vector<gid_t> & tab)
-{
-	log << log3 << "App: effective groups:";
-
-	for(size_t i=0 ; i<tab.size() ; ++i)
-	{
-		bool was_printed = false;
-
-		for(size_t x=0 ; x<i ; ++x)
-		{
-			if( tab[i] == tab[x] )
-			{
-				was_printed = true;
-				break;
-			}
-		}
-
-		if( !was_printed )
-			LogGroup("", tab[i], false);
-	}
-
-	log << logend;
-}
+void App::LogEffectiveGroups(std::vector<gid_t> & tab)
+{
+	log << log3 << "App: effective groups:";
+
+	for(size_t i=0 ; i<tab.size() ; ++i)
+	{
+		bool was_printed = false;
+
+		for(size_t x=0 ; x<i ; ++x)
+		{
+			if( tab[i] == tab[x] )
+			{
+				was_printed = true;
+				break;
+			}
+		}
+
+		if( !was_printed )
+			LogGroup("", tab[i], false);
+	}
+
+	log << logend;
+}
 
 
 void App::LogGroups()
 {
-std::vector<gid_t> tab;
-gid_t rgid;
-int len;
-
-	rgid = getgid(); 
-	len  = getgroups(0, 0);
-
-	if( len <= 0 )
-	{
-		log << log3 << "App: I can't read how many groups there are" << logend;
-		return;
-	}
-
-	tab.resize(len);
-	len = getgroups(len, &(tab[0]));
-
-	if( len == -1 )
-	{
-		log << log3 << "App: I can't read groups" << logend;
-		return;
-	}
-
-	if( len == 1 && rgid == tab[0] )
-	{
-		LogGroup("App: effective/real group:", rgid);
-	}
-	else
-	{
-		tab.resize(len);
-		LogEffectiveGroups(tab);
-		LogGroup("App: real group:", rgid);
-	}
+std::vector<gid_t> tab;
+gid_t rgid;
+int len;
+
+	rgid = getgid(); 
+	len  = getgroups(0, 0);
+
+	if( len <= 0 )
+	{
+		log << log3 << "App: I can't read how many groups there are" << logend;
+		return;
+	}
+
+	tab.resize(len);
+	len = getgroups(len, &(tab[0]));
+
+	if( len == -1 )
+	{
+		log << log3 << "App: I can't read groups" << logend;
+		return;
+	}
+
+	if( len == 1 && rgid == tab[0] )
+	{
+		LogGroup("App: effective/real group:", rgid);
+	}
+	else
+	{
+		tab.resize(len);
+		LogEffectiveGroups(tab);
+		LogGroup("App: real group:", rgid);
+	}
 }
 
 
 void App::LogUserGroups()
 {
-	LogUsers();
-	LogGroups();
+	LogUsers();
+	LogGroups();
 }
 
 
@@ -846,84 +846,114 @@ bool App::DropPrivileges(const std::string & user, uid_t uid, gid_t gid, bool ad
 {
 	if( additional_groups )
 	{
-		if( initgroups(user.c_str(), gid) < 0 )
-		{
-			log << log1 << "App: I can't init groups for user: " << user << logend << logsave;
-			return false;
-		}
-	}
-	else
-	{
-		if( setgroups(1, &gid) < 0 )
-		{
-			log << log1 << "App: I can't init groups for user: " << user << logend << logsave;
-			return false;
-		}
-	}
-
-	// for setting real and saved gid too
-	if( setgid(gid) )
-	{
-		log << log1 << "App: I can't change real and saved gid" << logend << logsave;
-		return false;
-	}
-
-	if( setuid(uid) < 0 )
-	{	
-		log << log1 << "App: I can't drop privileges to user: " << user
-			<< " (uid:" << uid << ")" << logend << logsave;
-		return false;
-	}
-
-	if( getuid()==0 || geteuid()==0 )
-	{
-		log << log1 << "App: sorry, for security reasons you should not run me as the root" << logend << logsave;
-		return false;
-	}
+		if( initgroups(user.c_str(), gid) < 0 )
+		{
+			log << log1 << "App: I can't init groups for user: " << user << logend << logsave;
+			return false;
+		}
+	}
+	else
+	{
+		if( setgroups(1, &gid) < 0 )
+		{
+			log << log1 << "App: I can't init groups for user: " << user << logend << logsave;
+			return false;
+		}
+	}
+
+	// for setting real and saved gid too
+	if( setgid(gid) )
+	{
+		log << log1 << "App: I can't change real and saved gid" << logend << logsave;
+		return false;
+	}
+
+	if( setuid(uid) < 0 )
+	{	
+		log << log1 << "App: I can't drop privileges to user: " << user
+			<< " (uid:" << uid << ")" << logend << logsave;
+		return false;
+	}
+
+	if( getuid()==0 || geteuid()==0 )
+	{
+		log << log1 << "App: sorry, for security reasons you should not run me as the root" << logend << logsave;
+		return false;
+	}
 
 return true;
 }
 
 
-bool App::DropPrivileges()
-{
-	if( getuid()!=0 && geteuid()!=0 )
-		return true;
-
-	log << log2 << "App: dropping privileges" << logend;
-
-	if( config.user.empty() )
-	{
-		log << log1 << "App: you should specify user name in the config file "
-					<< "to which I have to drop privileges" << logend << logsave;
-		return false;
-	}
-
-	if( config.group.empty() )
-	{
-		log << log1 << "App: you should specify group name in the config file "
-					<< "to which I have to drop privileges" << logend << logsave;
-		return false;
-	}
-
-	passwd * p = getpwnam(config.user.c_str());
-	group * g  = getgrnam(config.group.c_str());
-
-	if( !p )
-	{	
-		log << log1 << "App: there is no such a user as: \"" << config.user << "\"" << logend << logsave;
-		return false;
-	}
-
-	if( !g )
-	{	
-		log << log1 << "App: there is no such a group as: \"" << config.group << "\"" << logend << logsave;
-		return false;
-	}
-
-	if( !DropPrivileges(config.user, p->pw_uid, g->gr_gid, config.additional_groups) )
-		return false;
-
-return true;
-}
-
+bool App::DropPrivileges()
+{
+	if( getuid()!=0 && geteuid()!=0 )
+		return true;
+
+	log << log2 << "App: dropping privileges" << logend;
+
+	if( config.user.empty() )
+	{
+		log << log1 << "App: you should specify user name in the config file "
+					<< "to which I have to drop privileges" << logend << logsave;
+		return false;
+	}
+
+	if( config.group.empty() )
+	{
+		log << log1 << "App: you should specify group name in the config file "
+					<< "to which I have to drop privileges" << logend << logsave;
+		return false;
+	}
+
+	passwd * p = getpwnam(config.user.c_str());
+	group * g  = getgrnam(config.group.c_str());
+
+	if( !p )
+	{	
+		log << log1 << "App: there is no such a user as: \"" << config.user << "\"" << logend << logsave;
+		return false;
+	}
+
+	if( !g )
+	{	
+		log << log1 << "App: there is no such a group as: \"" << config.group << "\"" << logend << logsave;
+		return false;
+	}
+
+	if( !DropPrivileges(config.user, p->pw_uid, g->gr_gid, config.additional_groups) )
+		return false;
+
+return true;
+}
+
+
+
+bool App::Demonize()
+{
+	// in linux fork() should be used twice
+
+	int pid = fork();
+	
+	if( pid == -1 )
+	{
+		log << log1 << "App: I can't demonize myself (fork problem)" << logend << logsave;
+		return false;
+	}
+		
+	if( pid != 0 )
+	{
+		// parent
+		exit(0);
+	}
+
+	// child
+	if( setsid() == -1 )
+	{
+		log << log1 << "App: I can't demonize myself (setsid problem)" << logend << logsave;
+		return false;
+	}
+	
+return true;
+}
+
diff --git a/core/app.h b/core/app.h
index 63ba658..4df763f 100755
--- a/core/app.h
+++ b/core/app.h
@@ -52,7 +52,7 @@ public:
 	void Close();
 	bool DropPrivileges();
 	void LogUserGroups();
-
+	bool Demonize();
 
 	// configuration read from a config file
 	Config config;
diff --git a/core/config.cpp b/core/config.cpp
index 3ebb0e3..39e5ffa 100755
--- a/core/config.cpp
+++ b/core/config.cpp
@@ -89,6 +89,8 @@ bool Config::ReadConfig(bool errors_to_stdout_, bool stdout_is_closed)
 
 void Config::AssignValues(bool stdout_is_closed)
 {
+	demonize = Bool("demonize", true);
+
 	user  = Text("user");
 	group = Text("group");
 	additional_groups = Bool("additional_groups", true);
diff --git a/core/config.h b/core/config.h
index 51ee216..abdf2ae 100755
--- a/core/config.h
+++ b/core/config.h
@@ -21,9 +21,14 @@ class Config
 {
 public:
 
-	// name of the config file (full path can be)
+	// name of the config file
+	// this is the parameter passed to winix programm
 	std::string config_file;
 
+	// start as a demon (in the background)
+	// default: true
+	bool demonize;
+
 	// system user name (to which drop privileges)
 	// used only if winix is started as the root
 	std::string user;
@@ -47,6 +52,8 @@ public:
 	int log_level;
 
 	// logging to stdout too
+	// only if demonize is 'false'
+	// default: false
 	bool log_stdout;
 
 	// how many requests should be logged in the same time
diff --git a/main/main.cpp b/main/main.cpp
index 57ca806..997cceb 100755
--- a/main/main.cpp
+++ b/main/main.cpp
@@ -68,7 +68,7 @@ int main(int argv, char ** argc)
 	if( !app.config.ReadConfig(true, false) ) /* errors to stdout, stdout in not closed */
 		return 2;
 
-	if( app.stdout_is_closed )
+	if( app.stdout_is_closed || app.config.demonize )
 		app.config.log_stdout = false;
 
 	// closing descriptors only at the beginning
@@ -90,6 +90,9 @@ int main(int argv, char ** argc)
 
 	app.LogUserGroups();
 
+	if( app.config.demonize && !app.Demonize() )
+		return 4;
+
 	// app.config.base_server can be changed (stripped from 'http://' or a last slash)
 	// it is done when the config is read
 	log << log3 << "base_server: " << app.config.base_server << logend;