Due to a vulnerability, documented here, the SMB2 driver in Windows Vista, Windows Server 2008 and an early release candidate of Windows 7 it is possible to crash some systems resulting in a BSoD. This is a problem. In order to quickly and easily check your systems for this vulnerability we have created and are released an app called 'SMB Check' for the android platform. The app tests for the vulnerability and if your pc is affected suggests a course of action.
The vulnerability works because when the SMB2 driver receives a malformed negotiate protocol request it is unable to recover.
Edit: Check out the free version too! http://sinisterware.blogspot.com/2009/09/smb-check-ad-supported.html