Certain third-party applications may not start, and you receive an error message when you start the computer: "Illegal System DLL Relocation"
Recognise this ?
This posting is just to help any Google searchers for HHCTRL.OCX.
There is a recent problem on Windows XP with SP2 for certain 3rd-party apps.. caused by a security download from Mickeysoft..
It was casuing grief on my mother's new PC so I found out the answer via a bit of searching.
Download the update and all should be well.