diff --git a/nescadata.cc b/nescadata.cc
index a6fd0f1..32166f4 100644
--- a/nescadata.cc
+++ b/nescadata.cc
@@ -299,7 +299,7 @@ NESCAPORT *NESCATARGET::get_real_port(size_t id)
 void NESCATARGET::add_service(NESCAPORT *port, int service,
   struct timeval tstamp1, struct timeval tstamp2)
 {
-  NESCASERVICE res;
+  NESCASERVICE res={};
 
   res.rtt.tstamp1=tstamp1;
   res.rtt.tstamp2=tstamp2;
@@ -338,9 +338,11 @@ void NESCATARGET::add_info_service(NESCAPORT *port, int service,
   NESCASERVICE *_service=nullptr;
   NESCAINFO i={};
 
-  for (auto &s:port->services)
+  for (auto /* dont touch & */&s:port->services)
     if (s.service==service)
       _service=&s;
+  if (!_service)
+    return;
 
   i.info=info;
   i.type=type;
@@ -1267,12 +1269,27 @@ void NESCAOPTS::set_badsum_flag(void) { this->badsum_flag=1; }
 bool NESCAOPTS::check_badsum_flag(void) { return this->badsum_flag; }
 
 
-
 /*
  * -cfg <cfg_param>
  */
 void NESCAOPTS::set_cfg_flag(void) { this->cfg_flag=1; }
-void NESCAOPTS::set_cfg_param(const std::string &cfg_param) { this->cfg_param=cfg_param; }
+void NESCAOPTS::set_cfg_param(const std::string &cfg_param)
+{
+  std::string newpath;
+  size_t i;
+  bool t;
+  for (i=t=0;i<cfg_param.length();i++) {
+    if (cfg_param.at(i)=='-'&&cfg_param.at(i+1)=='-') {
+      newpath="resources/config/";
+      t=1;
+      i+=2;
+    }
+    if (t) newpath+=cfg_param[i];
+  }
+  if (newpath.empty())
+    newpath=cfg_param;
+  this->cfg_param=newpath;
+}
 std::string NESCAOPTS::get_cfg_param(void) { return this->cfg_param; }
 bool NESCAOPTS::check_cfg_flag(void) { return this->cfg_flag; }
 
diff --git a/nescaprint.cc b/nescaprint.cc
index 99a4de9..5d7c94f 100644
--- a/nescaprint.cc
+++ b/nescaprint.cc
@@ -467,7 +467,7 @@ void NESCAPRINT::usage(int argc, char **argv)
  -dhex <hexseq> - append a custom data to packet
  -dstr <str> - append a custom ASCII data to packets
  -ttl <num> - set Time To Live, (TTL)
- -win <num> - set your TCP window siz, default 1024
+ -win <num> - set your TCP window size, default 1024
  -ackn <num> - set TCP acknowledgment number
  -off <flag1[/flag2]...,> - set fragmentation OFFset: df,mf,rf
  -ipopt <hex> - set ip options to packet
diff --git a/nescaservices.cc b/nescaservices.cc
index bcab3cf..dbd2203 100644
--- a/nescaservices.cc
+++ b/nescaservices.cc
@@ -303,7 +303,6 @@ void send_http(struct http_request *r, NESCADATA *ncsdata, NESCATARGET *target,
   struct timeval        s, e;
   size_t                pos;
 
-  pos=0;
   dns=ncsdata->rawtargets.getdns(target->get_mainip());
   if (!dns.empty())
     http_add_hdr(r, "Host", dns.c_str());
@@ -313,16 +312,16 @@ void send_http(struct http_request *r, NESCADATA *ncsdata, NESCATARGET *target,
   gettimeofday(&s, NULL);
   http_qprc_pkt(target->get_mainip().c_str(), port, timeout, r, &response, resbuf, HTTP_BUFLEN);
   res=(char*)resbuf;
+  gettimeofday(&e, NULL);
 
-  target->add_service(target->get_real_port(pos), S_HTTP, s, e);
+  for (pos=0;pos<target->get_num_port();pos++)
+    if (target->get_port(pos).port==port)
+      break;
 
+  if (!res.empty())
+    target->add_service(target->get_real_port(pos), S_HTTP, s, e);
   http_qprc_redirect(response.hdr, resbuf, redirect, HTTP_BUFLEN);
   if (!std::string(redirect).empty()) {
-
-    for (pos=0;pos<target->get_num_port();pos++)
-      if (target->get_port(pos).port==port)
-        break;
-    gettimeofday(&e, NULL);
     target->add_info_service(target->get_real_port(pos),
         S_HTTP, (char*)redirect, "redirect");
 
diff --git a/resources/config/a.cfg b/resources/config/a.cfg
new file mode 100644
index 0000000..835820d
--- /dev/null
+++ b/resources/config/a.cfg
@@ -0,0 +1,8 @@
+'gmax'=2000;
+'gplus'=500;
+'gmin'=555;
+'pe'=1;
+'syn'=1;
+'maxfds'=350;
+'s'=http:80,81,8080,8081,ftp:21,20;
+'dlen'=33;
diff --git a/resources/config/j.cfg b/resources/config/j.cfg
new file mode 100644
index 0000000..2e26ba6
--- /dev/null
+++ b/resources/config/j.cfg
@@ -0,0 +1,11 @@
+'gmax'=2000;
+'gplus'=500;
+'gmin'=555;
+'all-ping'=1;
+'syn'=1;
+'xmas'=1;
+'fin'=1;
+'null'=1;
+'window'=1;
+'maxfds'=30;
+'s'=http:80,81,8080,8081,ftp:21,20;