I use SlickEdit 6c. Why? I live on microscopic income and have not been able to afford the upgrade. Surprisingly it still work on Windows 7 64 bit, though HELP has died. It is blinding fast.
I noticed in my F:\vslick directory the following three files:
2,405,256 $slk.0
1,057,530,348 $slk.1
119,655,648 $slk.2
They are unusually fat. I wondered if it safe to delete them and what they are.