ANTS Memory Profiler

Latest version: 7.4

ANTS Memory Profiler

Knowledge Base

System.EntryPointNotFoundException (Versions: 3,4 only)

Category: Troubleshooting & error messages
Date: 29 Dec 2010
Product: ANTS Memory Profiler
Versions: 3,4
Platform: Windows Server 2003

When profiling a web application on IIS version 6 on Windows Server 2003, you may receive the following error:

Unable to start profiler - exception details
System.EntryPointNotFoundException: Unable to find an entry point named
'Wow64DisableWow64FsRedirection' in DLL 'kernel32.dll'.

<stack trace...>

ANTS Profiler needs to disable folder redirection in order to profile ASP .NET. The above-mentioned method does not exist in the operating system kernel for Windows Server 2003 RTM.

You must upgrade your server to Service Pack 1 or higher to use ANTS Profiler on that platform.

Another possible solution is to force IIS to run in 32-bit mode by opening a command prompt and running the following two commands:

cscript %SYSTEMDRIVE%/inetpub/adminscripts/adsutil.vbs SET W3SVC/AppPools/Enable32bitAppOnWin64 1
%SYSTEMROOT%/Microsoft.NET/Framework/v1.1.4322/aspnet_regiis.exe -i

Document ID: KB200703000014 Keywords: ANTS,Memory,Profiler,EntryPointNotFoundException,64-bit,IIS,Unab

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