"The more functionality you have, the more likelihood there is for a security vulnerability, and Windows NT just keeps building more and more functionality in there, " Winkler said.

CNN: Known vulnerabilities are No. 1 hack exploit

With the overwhelming presence of the Windows platforms taking off, O'Reilly has added new titles such as The Whole Internet for Windows 95, Inside The Windows Registry and just recently a series of "Windows Annoyances" (ie Windows Annoyances, Office Annoyances, Word Annoyances) plus a complement to its UNIX series of NT books focusing on security and administration.

FORBES: Dummy books are for dummies