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- config : Miscellaneous configuration files.
-- dos : All 16-bit DOS files (kernel, drivers, apps...) are placed here.
+- dos : 16-bit DOS components (kernel, drivers, apps...).
- ntvdm : NT Virtual DOS Machine.
+- pifedit: ReactOS Program Information File Editor.
+- pifmgr : PIF Manager Icon Resource Library.
+- samples: Sample programs for NTVDM.
- vdmdbg : Virtual DOS Machine debug helper DLL (from Wine).
-- wow16 : All Win16 thunk files are placed here.
+- wow16 : Win16 thunk files and components.