How to change Wine DLL search path for "built-in" DLLs?

Theodore Dubois tblodt at
Fri Apr 8 18:19:13 CDT 2016

Use DLL overrides. Open winecfg, go to the Libraries tab, type msvcr120, click add, click edit, click native, click ok.


> On Apr 8, 2016, at 2:52 PM, Vladimir Panteleev <vladimir at> wrote:
> (reposting from wine-users, which seems to be dead)
> I'm trying to get the VS2012 C++ compiler (cl.exe) running under Wine
> - stand-alone, as a component for a different larger project. The
> project works fine on Windows without affecting any global system
> settings or files (i.e. it unpacks DLLs etc. to private subdirs
> instead of installing them system-wide). I'd like it to "just work"
> under Wine as well, without user intervention or persistent
> modifications to bottle settings or system files.
> Wine has a msvcr120.dll, however it is incomplete, at least as far as
> cl.exe is concerned:
> wine: Call from 0x7b44ee37 to unimplemented function
> msvcr120.dll.??0reader_writer_lock at Concurrency@@QEAA at XZ, aborting
> Internal Compiler Error in
> Z:\home\vladimir\work\Digger\work-wine\dl\vs2013-community\Program
> Files (x86)\Microsoft Visual Studio 12.0\VC\bin\amd64\cl.exe.  You
> will be prompted to send an error report to Microsoft later.
> The problem is that it attempts to load its builtin DLL even if I
> place the native Microsoft's DLL in PATH before system32/syswow64.
> WINEDLLPATH seems to have no effect, and adding a DLL override has no
> effect other than changing whether it loads Wine's DLL on fails to
> load a DLL at all (even though it's in PATH!). Yes, the model
> (bitness) is correct.
> I remember reading somewhere that Wine uses the value of PATH from the
> registry. I guess I could also just delete or overwrite Wine's DLL in
> system32/syswow64. But is it possible to change the DLL search path
> for one Wine invocation, without any permanent modifications to the
> bottle?
> Partially related, but I noticed that Wine does not skip over DLLs of
> wrong bitness as Windows does. Instead, the program fails to
> initialize. This means you can't add 32-bit and 64-bit DLL directories
> to PATH and let the programs' bitness sort out which to use. That's
> definitely a bug I guess.

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