Well, it is what I remembered

I do not have Windows 98 anymore. But I still have Delphi 4 installed under Wine, so I just tried it out.

Just showing a messagebox from windows gives 16k

Using the sysutils unit though, puts it at over 40k. And with classes, it becomes 57k. Not sure what they pull in. sysutils contains number/datetime parsing and formatting, and exception handling. classes has basic containers and object oriented file handling.