NTLM service

i upgraded from 32 bit to 64 bit just yday
but when i tried to install ntlmaps (to bypass proxy authentication) i couldn't run it as a service. i mean it shows in services that it's started and on automatic setting but it wont work.
i have to manually launch the application to get it to work which spoils the whole point of making it a service.
btw it was running fine on 32 bit

any suggestions?
i hv a dell xps m1530