Locking Executing Files: Windows does, Linux doesn't. Why?

Question

I noticed when a file is executed on Windows (.exe or .dll), it is locked and cannot be deleted, moved or modified.

Linux, on the other hand, does not lock executing

Answer 1

NT variants have the

openfiles

command, which will show which processes have handles on which files. It does, however, require enabling the system global flag 'maintain objects list'

openfiles /local /?

tells you how to do this, and also that a performance penalty is incurred by doing so.