Thank you a lot SirDice.

i detect the service. the name of the service is servlnks.exe and installed under this directory. C:\Program Files\Windows SSL Transport. another file name is Start.ini the content of the file as the following

site=megabandwidth.ibypass.co.uk
user=Premium

another batch file having the following lines

net stop servlnks
net start servlnks

anybody know about ibypass? our ISP is blocking the site.

i wonder how the folder installed in my PC, i don't recall installing any proxy server. anyhow i solve the problem and thanks everybody for support.