Windows – Clearing cmd.exe memory or cache

another way to verify would be to look at DNS traffic flowing on the wire. i.e. if your application makes a query for domainX at 2 PM and you don't see corresponding DNS packet at 2 PM in trace than that name got resolved using client side cache.

I know, it is kind of convoluted way to confirm the cache size. I concur there should be better way to confirm this.

Try shooting a question in Microsoft official forums or try sending a email to networking team

here. http://blogs.msdn.com/wndp/

You can view the saved credentials with start -> Run -> rundll32.exe keymgr.dll, KRShowKeyMgr

However I'm guessing you want the live cached connections to be flushed out and that box probably won't help. You may be able to clear these sessions using net session \\computername /DELETE. In theory this will flush out your connection to a given remote machine.