[imp] Attachments (i.e. wvHtml & xlhtml)

[Dave Breiland]

Running:
FreeBSD 4.7
Horde: 2.2.3 
IMP: 3.2.1 
Turba: 1.1 
Kronolith: 1.1 
Mnemo: 1.1 

I used to have the attachment viewers working in older versions of IMP, but 
can't seem to get it running again.

I have configured /horde/imp/config/mime_drivers.php with:
$mime_drivers_map['imp']['registered'] = array
('text', 'html', 'enriched', 'doc');

Configured /horde/config/mime_drivers.php with:

/* Location of the wvHtml binary. */       
$mime_drivers['horde']['msword']['location'] = '/usr/local/bin/wvHtml';
$mime_drivers['horde']['msword']['inline'] = true;
$mime_drivers['horde']['msword']['handles'] = array(
    'application/msword',
    'text/rtf',
    'x-extension/doc',
    'x-extension/rtf');
$mime_drivers['horde']['msword']['icons'] = array(
    'default' => 'msword.gif');


Configured /horde/config/mime_mapping.php with:
'doc'    => 'application/msword',

I've done similar for the xlhtml.  What piece am I missing to get these 
running?  I looked at: http://www.horde.org/faq/admin/prereq/index.php#p16 but 
did not find it helpful.