diff --git a/CalculatorCInterface.dll b/CalculatorCInterface.dll
index baa9af2..d817d63 100644
Binary files a/CalculatorCInterface.dll and b/CalculatorCInterface.dll differ
diff --git a/deploy/CalculatorCInterface.dll b/deploy/CalculatorCInterface.dll
index baa9af2..d817d63 100644
Binary files a/deploy/CalculatorCInterface.dll and b/deploy/CalculatorCInterface.dll differ
diff --git a/deploy/helloworld.exe b/deploy/helloworld.exe
index 5114fc5..14ccaac 100644
Binary files a/deploy/helloworld.exe and b/deploy/helloworld.exe differ
diff --git a/helloworld.exe b/helloworld.exe
index 5114fc5..14ccaac 100644
Binary files a/helloworld.exe and b/helloworld.exe differ
diff --git a/helloworld.lpr b/helloworld.lpr
index 6129a0e..ea64001 100644
--- a/helloworld.lpr
+++ b/helloworld.lpr
@@ -15,6 +15,8 @@ var
    LocalBranchName: array[0..32] of char;
    FileToCommit: array[0..128] of char;
    CommitMessage: array[0..256] of char;
+   UserName: array[0..64] of char;
+   PassWord: array[0..64] of char;
 
 begin
 // TariffCalc := NewTariffCalculator;
@@ -25,6 +27,8 @@ begin
    LocalBranchName := 'zg1/zone1';
    FileToCommit := 'etc/psa_tariff/tariff01.json';
    CommitMessage := 'TEST TEST';
+   UserName := 'GerhardHoffmann';
+   PassWord := 'ghlinux12345';
    if not DirectoryExistsUTF8(ExpandFilenameUtf8(LocalCustomerRepo)) then
        CreateDirUTF8(ExpandFilenameUtf8(LocalCustomerRepo));
 
@@ -36,7 +40,9 @@ begin
            if not CheckoutLocalBranch(LocalCustomerRepo, LocalBranchName) = 0 then
              writeLn('cannot check out') ;
            if not CommitFile(LocalCustomerRepo, LocalBranchName, FileToCommit, CommitMessage) = 0 then
-             writeLn('cannot check out') ;
+             writeLn('cannot commit') ;
+           if not PushLocalRepository(LocalCustomerRepo, LocalBranchName, UserName, PassWord) = 0 then
+             writeLn('cannot push') ;
         Finally
            if ShutdownGitLibrary() >= 0 then
               writeLn('shutdown git library') ;
diff --git a/tariffcalculator.pas b/tariffcalculator.pas
index 9e1658a..ae7a491 100644
--- a/tariffcalculator.pas
+++ b/tariffcalculator.pas
@@ -21,7 +21,8 @@ function CloneRepository(var url; var local_path) : cint32; stdcall;
 function CheckoutLocalBranch(var local_path; var branch_name) : cint32; stdcall;
 function CommitFile(var local_path; var branch_name;
                     var file_name; var comment) : cint32; stdcall;
-
+function PushLocalRepository(var local_path; var branch_name;
+                             var user_name; var password) : cint32; stdcall;
 implementation
 
 const
@@ -36,6 +37,8 @@ function CloneRepository(var url; var local_path) : cint32; stdcall; external DL
 function CheckoutLocalBranch(var local_path; var branch_name) : cint32; stdcall; external DLLName;
 function CommitFile(var local_path; var branch_name;
                     var file_name; var comment) : cint32; stdcall; external DLLName;
+function PushLocalRepository(var local_path; var branch_name;
+                             var user_name; var password) : cint32; stdcall; external DLLName;
 
 end.