How to allow mIRC? The Windows allows the MSN Messenger but not mIRC, i guess. Does anyone know how to do that?

could you be more specific?

Well i think u can allow some programs or to lower the security level somehow with Windows.. i cant get to any program which i have to connect..

try disabling your xp firewall....

Where is the xp firewall?

[*] Start
[*] Settings
[*] Control Panel
[*] Network Connections
[*] Right click your connection
[*] Properties
[*] Advanced Tab
[*] Put a check in the checkbox

If you need to open ports, either use the wizard on the bottom or click the Settings button

"if you need to open ports, either use the wizard on the bottom or click the Settings button" What do u mean by that? how can i do that? Where is that button?

On that Advanced tab, in the bottom right corner, there is a button called Settings.

When you click that, you'll see another dialog with 3 tabs: Services, Security Logging and ICMP.

Click the [ Add ] button.
Description of service: AUTH
Name or IP: localhost (or you can leave it blank, I think)
External port: 113 (*) TCP
Internal port: 113
[ OK ]

[ Add ]
Description of service: DCC4000
External port: 4000 (*) TCP
Internal port: 4000

...keep going till you get to

[ Add ]
Description of service: DCC4020
External port: 4020 (*) TCP
Internal port: 4020
[ OK ]
[ OK ]
[ OK ]

Then, in mIRC, go to:
File / Options / DCC / Options /
DCC Ports:
First: 4000
Last: 4020
[ OK ]