Hmmm, works that way in VFP 5.0a too. I also tried it with a MESSAGEBOX statement so it's not just with SELECT SQL.

Inline comments that end with a semi-colon still make a comment out of the entire next line, though.

local lcString
lcString = "123"  && this comment ends with a semi-colon ;
lcString = "ABC"  && this whole line is treated as a comment
?lcString  && prints 123

So that hasn't changed even in VFP6 SP3.