How to access cached object which is cached in different application under same parent web application ASP.Net

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ASP.NET4

Hi,

I have a web application which has multiple sub web application. I want to put object in cache in sub web application 1 and want to access the same cached object in sub web application 2..

Example:

IIS Herarchy:

Web_Application (Parent Web application)
- WebApplication1 (Child web application)
- WebApplication2 (Child web application)

I am putting object into cache inside the WebApplication1 code and want to access this same cache in the WebApplication2.

Is this possible ?
If yes, how?

Thanks