i have a pocket pc that synchronize to my desktop using active sync 4.1. I manage to coonect to internet, but i cant manage to connect to my computer, for example http://kangalert/server/sqlcesa30.dll
what kind of setting i need to configure in pocket pc so that i can connect to my computer.

cant connect to the computer
ceswell
Can you connect to that site from your desktop computer
http://kangalert/server/sqlcesa30.dll
Also make sure you have configure IIS correctly. See some guide here
http://msdn2.microsoft.com/en-us/library/ms172438.aspx
You can also utilize the VxUtil tools (http://www.cam.com/vxutil.html) to see if you are able to ping your computer. It could be helpful to help you narrow down the source of the problem.
randygit
1) Try to figure out the IP address of your desktop.
2) Replace kangalert with the IP Address you just found
If this works, the problem is that you can't access the host entry is not found on your Pocket PC. Pocket Hosts can help here. With this free tool you can assign host names to IP addresses on your Pocket PC.
Since your trying to access sqlcesa30.dll I guess your trying to use merge replication on a SQL Server 2005 database. It can also be your IIS server is not properly configured, or your publication of your database was not succesful, but I would try to start with the host name resolution.