Perflib ASP Event ID's

I'm not sure whats going on with my server here, but I'm running xenapp web interface on this server and running into some wierd issues.

I receive event id 1005 then 1018 immediately following. Any help would be greatly appreciated.

Event Type:	Error
Event Source:	Perflib
Event Category:	None
Event ID:	1005
Date:		12/24/2009
Time:		11:01:59 AM
User:		N/A
Computer:	VENTXEN1
Description:
Windows cannot access the file Ÿƒ ˆÊƒ`爟 for one of the following reasons: there is a problem with the network connection, the disk that the file is stored on, or the storage drivers installed on this computer; or the disk is missing. Windows closed the program c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\aspnet_isapi.dll because of this error.

Program: c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\aspnet_isapi.dll
File: Ÿƒ ˆÊƒ`爟

The error value is listed in the Additional Data section.
User Action
1. Open the file again. This situation might be a temporary problem that corrects itself when the program runs again.
2. If the file still cannot be accessed and
	- It is on the network, your network administrator should verify that there is not a problem with the network and that the server can be contacted.
	- It is on a removable disk, for example, a floppy disk or CD-ROM, verify that the disk is fully inserted into the computer.
3. Check and repair the file system by running CHKDSK. To run CHKDSK, click Start, click Run, type CMD, and then click OK. At the command prompt, type CHKDSK /F, and then press ENTER.
4. If the problem persists, restore the file from a backup copy.
5. Determine whether other files on the same disk can be opened. If not, the disk might be damaged. If it is a hard disk, contact your administrator or computer hardware vendor for further assistance.
Additional Data
Error value: ASP.NET
Disk type: %4

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 7f 00 00 00               ...    

-------------------------------------------------------------

Event Type:	Error
Event Source:	Perflib
Event Category:	None
Event ID:	1018
Date:		12/24/2009
Time:		11:01:59 AM
User:		N/A
Computer:	VENTXEN1
Description:
Performance counter data collection from the "ASP.NET" service has been disabled for this session due to one or more errors generated by the performance counter library for that service. The error(s) that forced this action have been written to the application event log.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

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