Had a really weird error, when I ran Isinteg -s AUSEXCH02 -fix -test alltests against my mailbox server and selected my offline public folder database I got the following error:
Isinteg: the request to cancel verification process failed.
Isinteg: the request to stop verification process failed.
The verification has probably been interrupted.
Please review the log file for more information.
I got past this by running:
Isinteg -s servername -fix -test rowcounts
Then I ran:
Isinteg -s servername -fix -test alltests
And it worked...