Top "Wow64" questions

How much memory can a 32 bit process access on a 64 bit operating system?

On Windows, under normal circumstances a 32 bit process can only access 2GB of RAM (or 3GB with a special switch …

windows memory wow64
Reading the registry and Wow6432Node key

I have some code that reads the registry and looks for a value in HKEY_LOCAL_MACHINE\Software\App\ but …

c# registry 64-bit wow64
Why is RegOpenKeyEx() returning error code 2 on Vista 64bit?

I was making the following call: result = RegOpenKeyEx(key, s, 0, KEY_READ, &key); (C++, Visual Studio 5, Vista 64bit). It …

c++ winapi windows-vista registry wow64
VS2008: Unable to start debugging, Remote Debugging Monitor has been closed

I am getting a mysterious error from time to time that I just don't get. I can "fix" it by …

debugging visual-studio-2008 wow64
How to open a WOW64 registry key from a 64-bit .NET application

My .NET application (any-CPU) needs to read a registry value created by a 32-bit program. On 64-bit Windows this goes …

.net registry wow64
Avoid Registry Wow6432Node Redirection

I'm trying to insert some simple registry keys using Microsoft.Win32.RegistryKey in c# but the path automatically changes from: …

c# registry wow64
HKEY_CURRENT_USER\Software\Wow6432Node\Classes vs HKEY_CURRENT_USER\Software\Classes\Wow6432Node

The question is very simple, what's the difference between HKEY_CURRENT_USER\Software\Wow6432Node\Classes and HKEY_CURRENT_USER\…

registry wow64
Search both ProgramFiles and ProgramFiles(x86) using environment variables in C++ and C# / VB.NET

Possible Duplicate: C# - How to get Program Files (x86) on Windows Vista 64 bit I am trying to launch a …

c# c++ vb.net environment-variables wow64
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProductId not found running 32bit app on 64bit Windows

As title really. Looking in regedit the key-value exists, but the Wow6432 key (HKLM\SOFTWARE\Wow6432Node\Microsoft\Windows NT\…

registry wow64
How to enum modules in a 64bit process from a 32bit WOW process

I have a requirement to retrieve all modules of a 64bit process in a 32bit WOW process in Windows, EnumProcessModules …

windows process 32bit-64bit wow64