diff --git a/.gitignore b/.gitignore
index 83f02b0..6288479 100644
--- a/.gitignore
+++ b/.gitignore
@@ -31,4 +31,8 @@
 /P*/*
 __history
 *backup*
-id
\ No newline at end of file
+id
+experiment_runner/experiment_runner
+experiment_runner/Participant1/
+experiment_runner/Participant2/
+experiment_runner/Participant3/
\ No newline at end of file
diff --git a/experiment_runner/experiment_runner.lpi b/experiment_runner/experiment_runner.lpi
index 539cba1..a37fcd2 100644
--- a/experiment_runner/experiment_runner.lpi
+++ b/experiment_runner/experiment_runner.lpi
@@ -88,7 +88,7 @@
         <PackageName Value="LCL"/>
       </Item2>
     </RequiredPackages>
-    <Units Count="15">
+    <Units Count="16">
       <Unit0>
         <Filename Value="experiment_runner.lpr"/>
         <IsPartOfProject Value="True"/>
@@ -155,6 +155,10 @@
         <Filename Value="units/csv_writer.pas"/>
         <IsPartOfProject Value="True"/>
       </Unit14>
+      <Unit15>
+        <Filename Value="units/helpers.pas"/>
+        <IsPartOfProject Value="True"/>
+      </Unit15>
     </Units>
   </ProjectOptions>
   <CompilerOptions>
@@ -165,7 +169,7 @@
     <SearchPaths>
       <IncludeFiles Value="$(ProjOutDir)"/>
       <Libraries Value="/usr/lib/gcc/x86_64-linux-gnu/4.9/"/>
-      <OtherUnitFiles Value="units;../../dependency/delphizmq;../../units"/>
+      <OtherUnitFiles Value="units;../dependencies/delphizmq"/>
       <UnitOutputDirectory Value="lib/$(TargetCPU)-$(TargetOS)"/>
     </SearchPaths>
     <Linking>
@@ -177,9 +181,6 @@
     </Linking>
     <Other>
       <CustomOptions Value="-dUseCThreads"/>
-      <OtherDefines Count="1">
-        <Define0 Value="UseCThreads"/>
-      </OtherDefines>
     </Other>
   </CompilerOptions>
   <Debugging>
diff --git a/experiment_runner/experiment_runner.lpr b/experiment_runner/experiment_runner.lpr
index 93ed7e4..894c8b8 100644
--- a/experiment_runner/experiment_runner.lpr
+++ b/experiment_runner/experiment_runner.lpr
@@ -11,8 +11,6 @@ program experiment_runner;
 
 {$mode objfpc}{$H+}
 
-{$DEFINE DEBUG}
-
 uses
   {$IFDEF UNIX}{$IFDEF UseCThreads}
   cthreads,
@@ -26,7 +24,7 @@ uses
   {$ENDIF}
   , StrUtils, Forms, Classes, sysutils
   , form_matrixgame, game_actors
-  , zhelpers, form_chooseactor
+  , helpers
   ;
 
 
@@ -80,7 +78,7 @@ const
       end
     else
       try
-        ID.Text := s_random(32);
+        ID.Text := RandomString(32);
         ID.SaveToFile(F);
         F := Copy(ID.Text,0,Length(ID.Text)-2);
       except
diff --git a/experiment_runner/lib/x86_64-linux/experiment_runner.compiled b/experiment_runner/lib/x86_64-linux/experiment_runner.compiled
new file mode 100644
index 0000000..a95b464
--- /dev/null
+++ b/experiment_runner/lib/x86_64-linux/experiment_runner.compiled
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<CONFIG>
+  <Compiler Value="/usr/bin/fpc" Date="1449313866"/>
+  <Params Value=" -MObjFPC -Scghi -Cg -O1 -g -gl -l -vewnhibq -Fi/home/rafael/git/sc_split/experiment_runner/lib/x86_64-linux -Fl/usr/lib/gcc/x86_64-linux-gnu/4.9 -Fl/opt/gnome/lib -Fu/home/rafael/git/sc_split/experiment_runner/units -Fu/home/rafael/git/sc_split/dependencies/delphizmq -Fu/usr/share/lazarus/1.6.2/lcl/units/x86_64-linux/gtk2 -Fu/usr/share/lazarus/1.6.2/lcl/units/x86_64-linux -Fu/usr/share/lazarus/1.6.2/components/lazutils/lib/x86_64-linux -Fu/usr/share/lazarus/1.6.2/packager/units/x86_64-linux -Fu/home/rafael/git/sc_split/experiment_runner/ -FU/home/rafael/git/sc_split/experiment_runner/lib/x86_64-linux/ -dLCL -dLCLgtk2 -dUseCThreads experiment_runner.lpr"/>
+</CONFIG>
diff --git a/experiment_runner/units/game_control.pas b/experiment_runner/units/game_control.pas
index 86996d3..8c14f16 100644
--- a/experiment_runner/units/game_control.pas
+++ b/experiment_runner/units/game_control.pas
@@ -121,7 +121,6 @@ const
 implementation
 
 uses ButtonPanel,Controls,ExtCtrls,StdCtrls,LazUTF8, Forms, Dialogs, strutils
-     , zhelpers
      , form_matrixgame
      , presentation_classes
      , form_chooseactor
diff --git a/experiment_runner/units/helpers.pas b/experiment_runner/units/helpers.pas
new file mode 100644
index 0000000..b858b0d
--- /dev/null
+++ b/experiment_runner/units/helpers.pas
@@ -0,0 +1,30 @@
+unit helpers;
+
+{$mode objfpc}{$H+}
+
+interface
+
+uses
+  Classes, SysUtils;
+
+function RandomString(ALength : Integer): Utf8String;
+
+implementation
+
+function RandomString( ALength: Integer ): Utf8String;
+const
+  Chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ';
+var
+  i: integer;
+begin
+  Result := '';
+  for i := 1 to ALength do
+    Result := Result + Chars[Random(Length(Chars)) + 1];
+end;
+
+initialization
+
+  Randomize;
+
+end.
+
--
libgit2 0.21.2