Looking for appropriate method to put dlls in SysWOW64 folder

Article
2019-10-10

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_{Thursday, October 10, 2019 7:46 AM}

Hi All,

After installing the Microsoft Visual C++ Redistributable for Visual Studio 2019 (x64 version) on a Win 10 IoT enterprise platform, I still unable to run my c++ application on the platform due to some missing dlls in SysWOW64 folder.
I need to manually copy those files from other location and paste them into SysWOW64 folder before I able to execute my
application.

Due to there are quite a number of dlls which are having the same name, I have no confidence whether I've copied the correct files into the correct location. Also, I feel that it would be tedious if I need to repeat the manual copy procedures in other future units.

Is there anyone know the appropriote method to put the dlls as listed below into the SysWOW64 folder.

ucrtbase.dll
ucrtbased.dll
ucrtbase_clr0400.dll
vcruntime140.dll
vcruntime140d.dll
vcruntime140_clr0400.dll

Thank You.

Regards

Geng88

All replies (12)

_{Tuesday, October 15, 2019 7:34 AM ✅Answered | 2 votes}

You're talking about VC++ redistribuable x64 version and SysWOW64 :

SysWOW64 = 32-bit

(see File System Redirector)

_{Thursday, October 10, 2019 8:00 AM | 1 vote}

Hello,

I'm sorry I don't know. You are in the wrong forum. This forum deals with Visual C++ source code problems.

You should better ask here: https://social.msdn.microsoft.com/Forums/en-us/home?forum=vssetup

Regards, Guido

_{Thursday, October 10, 2019 8:02 AM}

You quoted some DEBUG DLLs (ucrtbased.dll, vcruntime140d.dll)

And DLLs must never be copied manually in System folders.

_{Friday, October 11, 2019 7:42 AM}

Hello Guido,

Thanks for the info.

Regards,

Geng88

_{Friday, October 11, 2019 7:44 AM}

Hi All,

Is there anyone know the appropriote method to put the dlls as listed below into the SysWOW64 folder.

ucrtbase.dll
ucrtbased.dll
ucrtbase_clr0400.dll
vcruntime140.dll
vcruntime140d.dll
vcruntime140_clr0400.dll

Thank You.

Regards

Geng88

_{Friday, October 11, 2019 9:49 AM}

Hi Geng88,

Welcome to the MSDN forum.

Here are some of my suggestions. If I have misunderstood, please feel free to let us know.

As far as I know, If a .DLL is missing you'll get an error along the lines of, "Error opening file, dllName.dll missing."

You could copy the file to the system directory. Finally click the Start menu --> Run --> enter regsvr32 vcruntime140d.dll, press Enter to resolve the error message.

And how to register dll file you can refer to the following steps:

If the DLL is 32 bit:

Copy the DLL to C:\Windows\SysWoW64\

In elevated cmd: %windir%\SysWoW64\regsvr32.exe %windir%\SysWoW64\namedll.dll

If the DLL is 64 bit:

Copy the DLL to C:\Windows\System32\

In elevated cmd: %windir%\System32\regsvr32.exe %windir%\System32\namedll.dll

Best regards,

Eden

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_{Monday, October 14, 2019 4:21 AM}

Hello Eden,

My question is what is the proper way to get the below dlls. I would like to avoid those manual copy procedure.

ucrtbase.dll
ucrtbased.dll
ucrtbase_clr0400.dll
vcruntime140.dll
vcruntime140d.dll
vcruntime140_clr0400.dll

I thought I can get those dlls from Microsoft Visual C++ Redistributable for Visual Studio 2019 (x64 version), but seem like I was wrong.

_{Monday, October 14, 2019 7:11 AM}

As I said, some are DEBUG DLLs and installed with VS

and must not be copied into System folders

_{Tuesday, October 15, 2019 7:24 AM}

Hi Castorix31 and all,

1) ucrtbase.dll
2) ucrtbased.dll
3) ucrtbase_clr0400.dll
4) vcruntime140.dll
5) vcruntime140d.dll
6) vcruntime140_clr0400.dll

Exclude those DEBUG DLLs, I notice that DLLs like vcruntime140.dll, vcruntime140_clr0400.dll and ucrtbase_clr0400.dll did not appear in the SysWOW64 folder after the Microsoft Visual C++ Redistributable for Visual Studio 2019 (x64 version) installation. I wonder:

1) Is the manual copying procedure inevitable?

2) Is that the installer mentioned above do not provide those DLLs listed above? Then what is the proper way to get those DLLs?

I have no knowledge about this. I just hope that I can setup the system based on the proper procedure instead of copying files manually.

Thank You.

Regards,

Geng88

_{Tuesday, October 15, 2019 7:40 AM | 1 vote}

Hello,

as far as I found out, the dlls are in the redistributable package of VS 2015:

https://www.microsoft.com/en-us/download/details.aspx?id=48145

You should never copy dlls to the System folders manually. If your programme needs dlls of redistributable packages, then add the Setup exe of the package in your Setup routine.
If you use third party libraries in your programme, then provide them in the local installation path of your programme through your Setup routine.

Regards, Guido

_{Wednesday, October 16, 2019 1:47 AM}

Hello Castorix31 and All,

Finally I got the the required DLLs from Microsoft Visual C++ Redistributable for Visual Studio 2019 (x86 version).

Thank You.

Regards,

Geng88

_{Wednesday, October 16, 2019 1:53 AM}

Hi Guido,

There are two version of redistributable package of VS 2015~2019,(x64 version and x86 version). I finally got the required DLLs from Microsoft Visual C++ Redistributable for Visual Studio 2019 (x86 version). vcruntime140.dll finally appeared in SysWOW64 folder after the installation.

Thank You.

Regards,

Geng88

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Looking for appropriate method to put dlls in SysWOW64 folder

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