about "Remove Sample Applications" of MSADC

We got question from our key customer that following 2 URLs mentioned some files need to be deleted for security issue.

https://technet.microsoft.com/en-us/library/bb687367.aspx

https://msdn.microsoft.com/en-us/library/aa459236.aspx

But our product uses ADO to access MS SQL Server, if we delete those files directly, our product cannot start up anymore.

In fact, in Windows server 2008 and above, we cannot delete those files  since those files are being used by windows services such winlogon.exe.

Here are our questions:

1) Could you please give us a detail description about this security issue ?

2) What shall we do to fix the security issue in our case ?

Thanks!