CODEWITHSUNDEEP
c++visual-studiovisual-studio-2015runtime
kmort
kmort

Reputation: 2928

VS 2015 C++ Redistributable not in a single DLL?

Let's say I built the following C++ code into HelloWorld.exe with Visual Studio 2015, targeting Release, platform x64.

#include <iostream>

int main()
{
    std::cout << "Hello world!!" << std::endl;
    return 0;
}

Years ago, I could simply copy msvcp###.dll (or msvcr###.dll for C) along with HellowWorld.exe and have a runnable program.

I have just installed VS2015, and now it seems that I can't just bring msvcp140.dll along. There seems to be 70~ish api-ms-win-.....dll files in my System32 folder that need to come with it.

I know the best policy is to have them install the redistributable... but for cases where they can't, copying the .DLL used to be a viable alternative. Is it still the case? Am I missing something easy?

To sum up: I had thought I could just copy msvcp140.dll and have it work, but this doesn't seem to be the case. Am I wrong?

Note: I don't see the api-ms-....dll files in the list of things you are allowed to redistribute. Or is it understood this is part of the 2015 runtime and that comes along with it?

Upvotes: 2

Views: 282

Answers (2)

James
James

Reputation: 300

You can distribute the VC 2015 redistributable with your installer.

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

If that's not an option, statically link it.

You can also run depends to determine what other DLL's you need. You can ignore api-ms*.dll's: Dependency Walker: missing dlls

Upvotes: 0

Mitch
Mitch

Reputation: 1868

Rather than dealing with installing redistributables, I tend to statically link the runtime (/MT and /MTd compiler options).

It does result in a larger file size, but it's smaller than shipping the DLLs by far.

Upvotes: 1

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