Foglight .Net agent does not display information on .NET applications (4210375)

The .Net domain dashboard shows the "Servers" icon, but there is no information on applications.
The AVIcode Intercept application log file displays the following message:

Cannot add instance to performance counter. Message: Exception from HRESULT: 0xC0000BB8

Agent version: 5.7.491.0
.NET Framework: v2.0.50727.3615
ProcessID: 9676; InstanceID: 0;
InstanceName: w3wp.exe;
ApplicationPool: portal.mol.com_web_in;
Full Domain name: /LM/W3SVC/60/ROOT/web/in-1-130016536808574000;
Domain: portal.mol.com/web/in;

An error has occurred. Please contact Technical Support if this issue persists.
 Error:  Code: C0000BB8  Type: Windows API  External Time 1/3/2013 10:28:09 AM Thread: 8124 Raised in: pdhExpand. CCountersManager::GetProcessIndex, Caught in: CCountersManager::GetProcessIndex.

System information:
Agent version: 5.7.491.0
Windows version: 2.6.0.3.272.1.0.0.