title: How to properly check in DLLs/assemblies to TFS/Visual Studio Team Services (was VSO)
body: <p>We have several DLLs referenced by a project that are not available through NuGet. Every time one has to copy the DLL file across after pulling the solution from TFS/VSTS, which is quite tedious and confusing for ppl not familiar with our projects.</p>
  
  <p>Is there a way to properly check the DLLs in to TFS/VSTS? Obviously we can include the BIN folder in the solution but is that the right thing to do?</p>