How to write and read register ?

I'm making a program that needs to write and read some information to the register.

The information I need to write is the directory were the program is stored and what the name of the database is.

This information must also been read by my program.

How can I do this ?
CyberChildAsked:
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mvz121697Commented:
To read from the registry:
(reads registry value of yyyy in Key xxxx)

    Var
      tReg : TRegistry;
      cDir : String;

    Begin
      tReg := TRegistry.Create;
      With tReg Do
        Begin
          RootKey := HKEY_LOCAL_MACHINE;
         If OpenKey('software\microsoft\windows\currentversion\app\paths\xxxxxx',false)
            Then
              cDir := ReadString('yyyy')
            Else
              cDir:='?????';
          Free
        End;
       End;

To write to registry, use writestring, writeinteger, ....
example:

var
  Registry: TRegistry;
begin
  Registry:=TRegistry.Create;
  with Registry do begin
   RootKey:=HKEY_CURRENT_USER;
  OpenKey('Software\...\..',TRUE);
   WriteString('xxxx','yyyyy');
   CloseKey;
  end;
  Registry.Free;

Greetings,
MvZ
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julio011597Commented:
Thanks
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