Delphi 4. 0 – 1.1 Mb dll?!!!!!!

I am using Delphi 4.0. I have added more code to a dll which was 98K( I added about the same amount of code the dll had). I compiled it – damn, it became like over 1 Meg!!!! I do not what exactly is going. Do I need to set something in the compiler directives? Give me some ideas, please.