Usage of Threading in .Net 4.0 with WCF

Question

Hello,

In our Web Application, We are using .Net Framework 4.0 with WCF Services.

We have a WCF Service with some DB operations after which

it generates a Report (Report Generation takes time).

Here user does not need to wait until the report gets generated and hence we have thought

of implementing Threading ( using System.Threading.Thread class and call this ReportGeneration in a new

Thread from the main thread immediately after DB operations are over).

Is it suggested to go ahead with Normal Threading or do we have a better approach ?

(Note :- We use .Net Framework 4.0 with WCF Services and WCF Service settings being set as InstanceContextMode = PerCall and ConcurrencyMode set to Single )

Please advise.