一番簡単なやり方。

git clone -b develop https://github.com/DBCTRADO/TVTest
cd tvtest\src
git clone https://github.com/DBCTRADO/LibISDB
cd libisdb
call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\Common7\Tools\VsDevCmd.bat"
call "%VS150COMNTOOLS%\..\..\VC\Auxiliary\Build\vcvarsall.bat" x64
MSBuild projects\libisdb.sln /p:Configuration=Release /p:Platform="x64" /m
cd ..\
MSBuild TVTEST_ALL.sln /p:Configuration=Release /p:Platform="x64" /m

これでいける。