There will be 6 updates in total, 3 Critical, 2 Important and 1 Moderate.
Source: LinkMicrosoft Security Bulletin Advance Notification for July 2007
Published: July 5, 2007
Microsoft Security Bulletin Advance Notification issued: July 5, 2007
Microsoft Security Bulletins to be issued: July 10, 2007
This is an advance notification of six security bulletins that Microsoft is intending to release on July 10, 2007.