On Monday, he sent a message to his friend Adam.
On Tuesday, he sent a message to his friend Bertie.
Every day, he sent a message to a new friend, coincidentally, one whose name began with the next letter of the alphabet.
After doing this for a week, he decided to send a special message to the friend who got him into computers in the first place.
He couldn't resist calling it his "Henry's the eighth IM" IM.