Microsoft on Thursday announced plans to release 12 security bulletins on Feb. 12, InformationWeek reports. The company's February Patch Day will include information about seven critical and five important vulnerabilities affecting such software as Active Directory, ADAM, IIS, Internet Explorer, Jscript, Office, VBScript, Visual Basic, Windows, Works and Works Suite. In addition, Microsoft plans to address a weakness in Microsoft Office 2004 for Mac, though the company has yet to release the exact nature of the vulnerability. InformationWeek, however, speculates that it will likely relate to the Excel issue that surfaced in mid-January. Microsoft plans to hold a Webcast on Feb. 13 to address customer questions (Claburn, InformationWeek, 2/7/08).