I needed a TTemporaryFileStream and found it at [WayBack] DELPHI AREA » How to have a temporary stream, with no size limit.
It taught me that CreateFileA and CreateFileW (the ANSI and Unicode versions of [WayBack] CreateFile function (Windows)) accept a FILE_FLAG_DELETE_ON_CLOSE parameter, so as soon as you close the handle, Windows will dispose of the file.
Note however that this will apply to the file handle so if you want to open it multiple times, you need [WayBack] DuplicateHandle function (Windows) as per [Archive.is] The FILE_FLAG_DELETE_ON_CLOSE flag applies to the handle, also known as the file object, which is not the same as the file – The Old New Thing
–jeroen
