Microsoft violates the RFC and NCS reserved UUID namespace for uninstall UUIDs:
	Office 2000 (http://support.microsoft.com/kb/230848)  (ab)uses RFC 4122 Time based UUIDs for uninstall UUIDs: xxyyzzzz-78E1-11D2-B60F-006097C998E7
	Office XP   (http://support.microsoft.com/kb/302663)  (ab)uses RFC 4122 Time based UUIDs for uninstall UUIDs: 00000000-6000-11D3-8CFE-0050048383C9
	                                                                                                          and 00000000-6D54-11D4-BEE3-00C04F990354
	Office 2003 (http://support.microsoft.com/kb/832672)  (ab)uses RFC 4122 Time based UUIDs for uninstall UUIDs: WXYYZZZZ-6000-11D3-8CFE-0150048383C9
	Office 2007 (http://support.microsoft.com/kb/928516)  VIOLATES the NCS reserved UUID namespace for uninstall UUIDs: BRMMmmmm-PPPP-LLLL-p000-D000000FF1CE
	Office 2010 (http://support.microsoft.com/kb/2186281) VIOLATES the NCS reserved UUID namespace for uninstall UUIDs: BRMMmmmm-PPPP-LLLL-p000-D000000FF1CE
	Office 2013 probably uses the same format