Editing Wine (software) (section)

===Libraries and applications===
Wine allows for loading both Windows DLLs and Unix [[shared object]]s for its Windows programs. Its built-in implementation of the most basic [[Microsoft Windows library files|Windows DLLs]], namely [[NTDLL]], [[KERNEL32]], [[GDI32]], and [[USER32]], uses the shared object method because they must use functions in the host operating system as well. Higher-level libraries, such as WineD3D, are free to use the DLL format. In many cases users can choose to load a DLL from Windows instead of the one implemented by Wine. Doing so can provide functionalities not yet implemented by Wine, but may also cause malfunctions if it relies on something else not present in Wine.<ref name="archi"/>

Wine tracks its state of implementation through automated [[unit testing]] done at every git commit.<ref>{{cite web |title=Wine Status |url=https://wiki.winehq.org/Wine_Status |website=WineHQ |access-date=22 April 2019 |archive-date=22 April 2019 |archive-url=https://web.archive.org/web/20190422232105/https://wiki.winehq.org/Wine_Status |url-status=live }}</ref>