Can't change IIS AppPool recycling conditions to 0

Question

I host a WCF service on IIS via ASP.NET application.

I use static objects to hold sessions details so it is very important for me that the AppPool will not recycle its data unless I upload a new DLL or config file.

I changed the Idle Time-out (minutes) to 0 but when I try to change the Regular time intervals, Virtual memory usage and Private memory usage to 0, when I click Finish, the IIS won't save my changes.

What could be the cause of this? How can I solve it? Is there a work-around?

UPDATE

Is there a better solution than what I'm currently doing?

Answer 1

为了防止在应用程序池回收期间丢失会话，您需要将会话状态存储在ASP.NET状态服务，SQL Server DB或自定义会话状态提供程序中 。