Validation summery not working????????????

I have created dynamic controls on asp.net page.I am using Validation summery in asp.net 1.1 for validating dynamically created controls.It is working fine on my local PC.But this validation summery is not working
on my production server.In both cases system uses asp.net 1.1.

can any one help?????

are you receiving any error messages?

it is resolved by using this command:-
aspnet_regiis.exe -c