Hi Charles,
I believe it's just a cosmetic bug, as its workaround is to " click the "ok" button" :-)
You would probably like to contact TAC to verify the status
CSCdt27399 Bug Details
Headline Message box titled IIS Helper... appears with an OK button
Severity 3
Status Verified
First Found-in Version 3.1(0.1.1)
WORKAROUND:
Click to "OK" button