RTF text control

My application have one .DLL with files and global description
and one .EXE
When I try add Text control with RTF support I recv error -

Unresolved External  CHANGECALLBACK_@_RTFNOTIFY_@_RTFCONTROLC
LASS@F9RTFNOTIFY
l
in *.obj
Unresolved External  EVENTCALLBACK_@_RTFNOTIFY_@_RTFCONTROLCL
ASS@F9RTFNOTIFYl
in *.obj
Unresolved External  CONTEXTMENUTEXT_@_RTFNOTIFY_@_RTFCONTROL
CLASS@F9RTFNOTIF
Y
in *.obj
Unresolved External  CONTEXTMENUCHOICE_@_RTFNOTIFY_@_RTFCONTR
OLCLASS@F9RTFNOT
IFYl
in *.obj

At the same time if application have only .EXE modul - everithing OK