Originally Posted by NevemTeve
Tested in AIX 6.1, result:
ex: 0602-093 hlsearch is not a recognized option.
Use set all to see all options.
Ah! Wasn't sure about hlsearch option itself, but I am sure that the search works the same, and searched terms are hilighted in every vi I have used in past so I would not expect AIX vi to be different. (Can you please verify/refute this on your AIX?)
I had the impression that the OP did not know how to search ("/") more so than not getting hilighted results... maybe wrong.
I also noted that the question 3 months old and the OP has not been back, so we may be talking among ourselves!