This week's Microsoft patches - my take.
MS07-001 - Brazilian Portuguese grammar checker. My first thought is "this announcement is in English - I wonder if it's been translated into Brazilian Portuguese yet?" If you have installed a Spanish language or Portuguese language version of Office, or installed those language's grammar tools into a multi-language version, then you need the patch. Otherwise, you'll open an Office document, and find your computer isn't yours any more.
MS07-002 - Vulnerabilities in Microsoft Excel Could Allow Remote Code Execution:
If you have Excel installed - yes, even on a Mac, and even if you're using MS Works - install this update. There's nearly a half-dozen ways to exploit you with this one. [Office 2007 and Works 2006 are not vulnerable to this]
MS07-003 - Vulnerabilities in Microsoft Outlook Could Allow Remote Code Execution:
Three vulnerabilities in Outlook - the first of which means that if I send you a calendar entry, and you open it in Outlook, your account is now mine. Apply this if you use Outlook for email (or for any other transport medium that allows iCal calendar entries). [Office 2007 is not vulnerable to this]
MS07-004 - Vulnerability in Vector Markup Language Could Allow Remote Code Execution:
VML? Again? Jesper and I told you how to block a previous VML remote code execution issue (by disabling the ActiveX control VGX.DLL) back in September 2006 (and a minor correction later) - if you don't use VML, you may want to just disable the VML control again, and leave it off. Otherwise, apply the patch ASAP, because you can't really tell when you're going to hit a web page that does use VML for evil.