SharePoint User Code Host starts then stops

SharePoint User Code Host starts then stops with ULS errors:

Performance Counter OS (pdh) call failed with error code PDH_CSTATUS_NO_MACHINE.
- Process perf counters are disabled. Sandboxed code monitoring cannot continue
from SPUCHostService.exe

EventViewer reports:

Log Name:      System
Source:        Service Control Manager
Date:          7/30/2013 12:00:10 PM
Event ID:      7034
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      SP2013.contoso.com
Description:
The SharePoint User Code Host service terminated unexpectedly.  It has done this 18 time(s).

The solution is described in  http://support.microsoft.com/kb/983081:

add windows service account of SharePoint User Code Host to local server groups 'Performance Monitor Users' and 'Performance Log Users'