Description
Installation of one of the Microsoft security patches KB2467174, KB2467175, KB2465361 or KB2465367 causes a massive drain on resources (increase in handles) in WinCC Runtime (OS Runtime, WinCC Runtime Professional V11). This consumption of resources can lead to a standstill of WinCC Runtime.
It is strongly recommended not to install any of the Microsoft security patches KB2467174, KB2467175, KB2465361 or KB2465367.

Detailed information about these Microsoft security patches is available at these links:

• http://support.microsoft.com/kb/2467174
• http://support.microsoft.com/kb/2467175
• http://support.microsoft.com/kb/2465361
• http://support.microsoft.com/kb/2465367

A remedy is given in the entries below under the corresponding KB numbers.

Note
Refer also to
"Which Microsoft Security Patches have been tested for compatibility with SIMATIC WinCC?" in Entry ID: 18752994 and
"Which Microsoft Security Patches have been tested for compatibility with SIMATIC PCS 7?" in Entry ID: 18490004.