Thank you for the hint but If I do it I get a new error
 
C:\Program Files\OTRS\StrawberryPerl\perl\bin>ppm
Failed to load PPM_DAT file
Can't use an undefined value as a SCALAR reference at C:/Program Files/OTRS/StrawberryPerl/perl/site/lib/PPM.pm line 1672, <DATA> line 41.

Furthermore there is a proxy to set with username and password; it works properly with Internet Explorer.
2009/6/17 Yogesh Desai <yogesh.desai@coreobjects.com>

You can use the "ppm" (Programmer's Package Manager) tool to install missing modules.

 

ppm can be run by typing ppm in a command prompt window.  To install

the Net::POP3::SSLWrapper module type

 

   install Net::POP3::SSLWrapper

 

Thanks,

Yogesh