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"Failed to CoCreate profiler" in log after uninstalling ANTS

Hi Stephane,

I'd say it's more than likely that it has something to do with the profiler core component. This should only be called, however, if ANTS Profiler has enabled profiling for the application.

If the last thing that you had profiled was a web service or web application, can you try stopping and starting IISADMIN using the IISRESET command from the console?

Otherwise, I think it could be that ANTS Profiler has somehow interfered with another vendor's profiler (such as DevPartner's), so it might help to uninstall and reinstall their software.
Brian Donahue
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  • Brian Donahue
    Hi Stephane,

    Have you tried just installing ANTS Profiler again and uninstalling it?
    Maybe the uninstall didn't work correctly. In particular, do you still have the ANTS Profiler service installed? You can check for that in Control Panel->Administrative Tools->Services.
    Brian Donahue
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  • Brian Donahue
    Can you try checking your registry to see if the environment variable COR_PROFILER is enabled for the ASPNET user?

    First, try checking the default environment settings using regedit in HKEY_USERS\.Default\Environment to see if COR_PROFILER is set.

    Next, check to see if the ASPNET account has its' own environment settings. I don't think it will unless it's logged in interactively. To check this, you'd need the ASPNET account's SID, which you can get by saving the following VB code to a file and running with cscript.exe: 
    'VBScript to Enumerate Accounts, and SID
On Error Resume Next
if Err <> 0 Then
set lasterr = CreateObject("WbemScripting.SWbemLastError")
Wscript.echo lasterr.Operation
End if

'Get the local machine name
set WshShell = WScript.CreateObject("WScript.Shell")
SET WshEnv=WshShell.Environment("PROCESS")
Dim Machinename
Machinename=WshEnv("COMPUTERNAME")

set objWMIService = GetObject("Winmgmts:\\" & Machinename)
set colAccounts = objWMIService.InstancesOf("win32_Account")
For each objAccount In colAccounts
If objAccount.name="ASPNET" AND objAccount.Domain=Machinename Then
WScript.echo "Name " & objAccount.name & vbCRLf & _
"SID : " & objAccount.SID & vbcrlf & _
"Sid Type : " & objAccount.SIDType & vbcrlf & _
"Status : " & objAccount.Status & vbcrlf & _
"Domain : " & objAccount.Domain & vbcrlf & _
"Caption : " & objAccount.Caption 
End if
Next
WScript.quit
    Check HKEY_USERS\<SID>\Environment and see if COR_PROFILER appears in there.
    Brian Donahue
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