Ran cmake to create VS0125 projects with -DHTTP_ONLY:BOOL=ON -DBUILD_CURL_EXE:BOOL=OFF msbuild /p:Configuration=Debug CURL.sln I expected it to work but a bunch of test programs failed with linker errors. The cmake options don't make a difference. Same problem with no options. I reverted to 7_48_0 and everything was fine.