Version: Service Pack HotFix Date Server Seq Client Notes
4.6.1.30101 SP1 HF 4
KB2586968		  August 2011     U   

link to kb2586968

Appears to be a client fix for the following:

  • Client leaks handles used to access the registry
  • Client generates a Stop error (aka blue screen) with code 0xC4
  •