$conf['utils']... ie helper apps

[Liam Hoekenga]

I'm in the process of compiling the various helper apps that IMP has out-of-the
box support for (or appears to), and I'm having some problems.

I've got working versions zipinfo, xlhtml, and gnu tar but when I try to view
.tar, .zip and .xls attachments, I'm prompted to download the files rather than
view them.

tar, xlview and zipinfo are permitted 755.

Here are the lines from horde/imp/config/conf.php:

   $conf['utils']['spellchecker'] = '/usr/local/aspell/bin/aspell';
   $conf['utils']['wordviewer'] = '';
   $conf['utils']['excelviewer'] = '/usr/local/xlhtml/bin/xlhtml';
   $conf['utils']['powerpointviewer'] = '/usr/local/xlhtml/bin/ppthtml';
   $conf['utils']['tar'] = '/usr/local/gnu/bin/gtar';
   $conf['utils']['gpg'] = '/usr/local/gnu/bin/gpg';
   $conf['utils']['unzip'] = '/usr/local/zipinfo/bin/zipinfo';

I'm using Horde 1.3.5 / IMP 2.3.7 from 2001-10-24, PHP 4.0.6 (CGI), PEAR CVS
(2001-10-11), and Apache 1.3.20 on Solaris 2.6

Do I need to be giving the utilities command line arguments?

Liam