PHP Boleto

fala galera, estou aqui tentando instalar o phpboleto no meu servidor, configurei tudo certinho conforme o manual de explicação, só que quando tento acessar o sistema, ele da o seguinte erro:

Warning: main(c:\www\htdocs\registranet\docs\phpBoleto\include\comum.php): failed to open stream: No such file or directory in C:\Domains\registranet.com\wwwroot\boleto\index.php on line 26Warning: main(): Failed opening 'c:\www\htdocs\registranet\docs\phpBoleto\include\comum.php' for inclusion (include_path='.;c:\www\htdocs\registranet\docs\phpBoleto\include\pear') in C:\Domains\registranet.com\wwwroot\boleto\index.php on line 26Warning: main(c:\www\htdocs\registranet\docs\phpBoleto\include\class.ini.php): failed to open stream: No such file or directory in C:\Domains\registranet.com\wwwroot\boleto\index.php on line 27Warning: main(): Failed opening 'c:\www\htdocs\registranet\docs\phpBoleto\include\class.ini.php' for inclusion (include_path='.;c:\www\htdocs\registranet\docs\phpBoleto\include\pear') in C:\Domains\registranet.com\wwwroot\boleto\index.php on line 27Fatal error: Cannot instantiate non-existent class: file_ini in C:\Domains\registranet.com\wwwroot\boleto\index.php on line 28

link para acesso ao sistema

http://www.registranet.com/boleto/index.php

abraços!