Thank you for the fast reply. Other problems with the installation of Print Preview on Delphi 5:
TCustomListView.IsCustomDrawn is absent in D5, so there is no need to "override" it (this directive must be removed);
TCustomListView.DeleteSelected is absent in D5, so there is no need to "override" it (the directive must be removed);
TCustomListView.ClearSelection is absent in D5 (error in TThumbnailPreview.SetSelectedPages);
TCustomListView.DeleteSelected causes error in TThumbnailPreview.DeleteSelected.
I have tried to "fix" these methods in the text of preview.pas, compiled and installed the component, but then I have received the unpleasant surprise: the TThumbnailPreview doesn't draw thumbnails - only "transparent" rectangles instead of them (see picture).
In version 4.75 this worked OK.
Windows 2000 SP4, Delphi 5.1.