Delete IE Cache Programatically in 64 bit OS

How can I delete the IE开发者_高级运维 cache in a 64 bit environment?

Take a look at How to clear the cache when your application hosts a WebBrowser control in Visual C# .NET

After contacting the MSFT support the answer turned out to be that I had to run the application under an interactive user. It seems like wininet on win 08 64 bit did not like executing the delete cache apis under a non interactive user!