Disk cleanup - housecall 6.6 ?

Doing some disk cleanup on the system drive and found the following old folder:

C:\Documents and Settings\Owner\.housecal6.6​

This is apparently something used by Trend Micro Housecall online virus scan.
It occupies 430 MB, so I'd like to delete it.

The latest file is dated 04-2009

There is nothing in Add or Remove Programs labeled either Housecall or Trend Micro.
There is a folder in Program Files, but it contains only one small file dated 01-2007.

Can someone confirm for me, Is It OK To Delete That Folder?
I like to get a second opinion before I do something like that.

Thanks.

 

I'd zap it, if the machine is on another AV.
Not sure if Trend Micro's, Diagnost toolkit will pick up remnants of the online scanner. Give it a run though. Else manually.

Cheers..

 

Thanks sikvik.

I ran the tool - didn't do anything, as far as I can tell.
The stuff is still there.

I think there may have been something Installed some time ago, but I had already removed it.
I suspect that this is stuff left behind after the uninstall.