WCF Service Uploading Another WCF Service?

We're considering building a WCF service that can upload (and confi开发者_StackOverflowgure) other WCF services. (We're not concerned about this causing downtime for currently active user sessions.) I'm concerned about IIS restarting the AppDomain (due to changes in bin or web.config) before the service call has completed all the changes. Will IIS wait for the current service call(s) to complete before restarting? Is there a way to temporarily disable the restart during the changes?