[imp] missing Socket.php in PHP-4.2.1 PEAR?

[Roman Serbski]

Hi list

Horde 2.1, IMP 3.1, Turba 1.1 - all from tarballs.
Apache 1.3.26, PHP-4.2.1 (with updated Log and Mail_Mime 
PEAR modules as described in 
http://cvs.horde.org/co.php/horde/docs/INSTALL?r=1.37)

Everything works as before - many thanks for your work team!!!
The only problem is with message redirection, it just gives 
blank page and generates error message in php log:

[23-Jun-2002 23:41:34] PHP Warning: Failed opening 
'Net/Socket.php' for inclusion 
(include_path='.:/usr/local/php-4.2.1/lib/php') in 
/usr/local/php-4.2.1/lib/php/Net/SMTP.php on line 93
[23-Jun-2002 23:41:34] PHP Fatal error: Cannot instantiate 
non-existent class: net_socket in 
/usr/local/php-4.2.1/lib/php/Net/SMTP.php on line 95

I checked /usr/local/php-4.2.1/lib/php/Net/ - there is no 
Socket.php inside, so I put the one from PHP-4.1.1 
(Socket.php,v 1.7.2.2 2001/11/13).
Error message disappeared and redirection now works fine =) 
but I'm not sure whether this is correct way to fix this 
problem. I mean, may be I should upgrade Net/Socket(?) 
module the same way as Log and Mail_Mime?

Thanks for your time.

Roman