Webservice does not fetch when published on IIS

[aman katoch]

Hi,
I have a webservice connecting to access db using DSN. Its .asmx page working fine on .net development server. But when i publish it on IIS, run .asmx page and call web method, it does not get the data. Also there is no error. What can be the problem.

plz reply asap.

Thanks,
Aman Katoch.