Engineering is about tradeoffs: How hard will you work to save 68KB of disk space?

The Old New Thing : Engineering is about tradeoffs: How hard will you work to save 68KB of disk space?: "One of the recurring themes in the comments to my explanation of the historical reasons why there are two copies of Notepad was to use a hard link (or possibly a symbolic link) to save having to waste the disk space for two whole copies of Notepad. As I like to say, engineering is about tradeoffs. Let's look at the cost-benefit analysis."