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Questions tagged [wow64]

WOW64 is a subsystem of 64-bit Windows. Add this tag for WOW64 related questions.

WOW64 (Windows 32-bit on Windows 64-bit) is a subsystem of the Windows operating system capable of running 32-bit applications on 64-bit Windows. It is included in all 64-bit versions of Windows.

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C++: IsWow64Process2: What valid WOW64 process architecture values can be returned via the pProcessMachine parameter?

IsWow64Process2 docs (parameters section) say the following: pProcessMachine On success, returns a pointer to an IMAGE_FILE_MACHINE_* value. The value will be IMAGE_FILE_MACHINE_UNKNOWN if the target process is not a WOW64 process; otherwise, it…
Xitalogy
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Opening %SystemRoot%\system32\calc.exe from a 32-bit process redirects to another file. Which, why and how?

I'm currently writing some test code in C++ that messes around with PE files to understand its file format structure. My project is set to compile to 64 bit. In my code I open %SystemRoot%\system32\calc.exe and read the IMAGE_DOS_HEADER and…
Jehjoa
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32bit DLLs using MSDTC/oracle XA on 64 bit Win2k3

I have a COM+ application (mostly vb6 based), that I need running on a 64-bit system. It's supposed to communicate with an oracle database (10g, 32bit). Everything works fine when I disable XA, but when I have it enabled I receive the following…
cc0
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Inno Setup always starts PowerShell in 32-bit mode in Pascal Script code

I want to use PowerShell (64-bit version) in the ssPostInstall step of my Inno Setup, but it always opens a 32-bit PowerShell. As you can see in my script my Inno Setup is configured as 64-bit application. When I start the setup I can see in the…
Al Phaba
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32-bit OpenFileDialog --> 64-bit System32?

In a 32-bit program, how can I get the Open/Save File Dialogs to show the files in the System32 folder of a 64-bit system? (Wow64DisableWow64FsRedirection doesn't work, because for some reason it doesn't work for the dialog, I'm guessing because…
user541686
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How to generate a 32bit only Managed C++ Assembly

I need to compile a DLL in Managed C++ in Visual Studio 2005. I want it with 32Bit corflag on. See http://illuminatedcomputing.com/blog/?p=117 for reference. By default, I choose Win32 platform and set the /MACHINE:X86 option in the liker, but the…
Robert
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Wow64DisableWow64FsRedirection and GetNamedSecurityInfo - unavoidable ERROR_BAD_EXE_FORMAT?

I am using Wow64DisableWow64FsRedirection / Wow64RevertWow64FsRedirection to disable and restore WOW-64 file redirection (making system32\ to syswow64\ and some registry changes). The MSDN page warns that you should use these pairs very close…
coderforlife
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Freetype2 failing under WoW64

I built a tff to D3D texture function using freetype2(2.3.9) to generate grayscale maps from the fonts. it works great under native win32, however, on WoW64 it just explodes (well, FT_Done and FT_Load_Glyph do). from some debugging, it seems to be a…
Necrolis
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Why is 32 bit executable not running under WoW64?

On my 32 bit system (Windows 10), I created a very simple Windows Forms (.NET FW 3.5) application: bool x86 = IntPtr.Size == 4; if (x86) { label1.Text = "OS: 32 bit"; } else // IntPtr.Size == 8 …
Sabuncu
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How to identify the start and end of a stream through wowza?

I'm new in Wowza. I need to know whether there is any mechanism to identify the start and end of a stream through wowza. This service will monitor each of the inbound ports that are currently bound to wowza engine and then try to create a…
Jerin Raj
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Is there any method to identify cameras has stopped streaming?

I'm new in Wowza. I need to know whether there is any method to identify cameras has stopped streaming in Wowza?
Jerin Raj
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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\CurrentVersion) doesn't have this key. This means a 32-bit app doesn't work on my 64-bit Windows version... which seems…
Mr. Boy
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X64 installer using Won64 node registry

I am using InstallShield 2008 premium edition. I created one basicMSI project only to target x64 platforms. I changed summary property to "x64". But this installer is writing registry entries in…
Rajeshaz09
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Can a WoW64 process create/fork/etc pure x64 process?

I wish to call a x64 exe from x86 process/exe, for example: open x86 cmd : %windir%\SysWoW64\cmd.exe start notepad: notepad.exe <- it will be x86 notepad (according to taskmanager = *) Is it possible to execute the x64 notepad from the x86 cmd ?…
Y.B
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Use 64 bits COM objects from 32 bits process

I'm using the virtualbox api that uses COM on windows. If you have a 64 bit OS it will install the 64 bit version and the COM interfaces will be accessible to 64 bit clients but not to 32 bit ones. I'm told this is a COM limitation but I have seen…
Luiz Geron
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