| ChDir procedure | Changes the current directory |
| ChDrive procedure | Changes the current drive |
| CurDir function | Returns the current directory of a drive |
| Dir function | Returns the name of a file or directory matching a file specification and having particular file attributes |
| Directory.CreateDirectory method | Creates a new directory |
| Directory.Delete method | Deletes a directory |
| Directory.Exists method | Indicates whether a particular directory exists |
| Directory.GetCreationTime method | Retrieves the date and time the directory was created |
| Directory.GetDirectories method | Retrieves the names of the subdirectories of a given directory |
| Directory.GetDirectoryRoot method | Retrieves the name of the root directory of a given directory |
| Directory.GetFiles | Retrieves the names of the files in a given directory |
| Directory.GetFileSystemEntries method | Retrieves the names of filesystem objects (files and directories) in a given directory |
| Directory.GetParent method | Retrieves a DirectoryInfo object representing the parent of a specified directory |
| Directory.Move method | Moves a directory and its contents, including nested subdirectories, to a new location |
| File.Exists method | Indicates whether a specified file exists |
| FileCopy function | Copies a file |
| FileDateTime function | Returns the date and time of file creation or last access |
| GetAttr function | Returns the attributes of a given file or directory |
| Kill function | Deletes one or more files |
| MkDir function | Creates a new directory |
| Rename function | Renames a file or directory |
| RmDir function | Removes a directory |
| SetAttr procedure | Sets a file or directory's attributes |
