Quote; If I just use my Amiga for occasional gaming, do I really need this running in the background? Will it speed my Amiga up if I remove it from my startup?
I assume you mean the RexxMast program... I really, really doubt removing wil have any effect on the speed of your Amiga....
If you Only play games on your machine, I suppose you could comment out the line that runs RexxMast in your User-Startup...
I would just as soon leave it, you may someday run a program that uses ARexx... What version of the OS do you have? Cuz the OS 3.9 Workbench has an Arexx port too

(OS 3.5 too maybe?) Later Amiga Format CD's had a search funtion that would automatically open the CD/sub-directories to the file you were looking for.