使用MSAccess数据库的Delphi 7应用程序阻止MSaccess访问

I have an old Delphi 7 application that I fixed up a bit. It uses an Access database. There are about 150 users who all open the application remotely and access the database in parallel. Before I started fixing things (heh), this worked nicely (apart from bugs in the Delphi application), even if the database was occasionally a bit slow.I have an old Delphi 7 application that I fixed