The following items are now obsolete in IDL:
| DDE Routines |
| DELETE_SYMBOL |
| DELLOG |
| DEMO_MODE |
| DO_APPLE_SCRIPT |
| ERRORF |
| FINDFILE |
| GETHELP |
| GET_SYMBOL |
| HANDLE_CREATE |
| HANDLE_FREE |
| HANDLE_INFO |
| HANDLE_MOVE |
| HANDLE_VALUE |
| HDF_DFSD_ADDDATA |
| HDF_DFSD_DIMGET |
| HDF_DFSD_DIMSET |
| HDF_DFSD_ENDSLICE |
| HDF_DFSD_GETDATA |
| HDF_DFSD_GETINFO |
| HDF_DFSD_GETSLICE |
| HDF_DFSD_PUTSLICE |
| HDF_DFSD_READREF |
| HDF_DFSD_SETINFO |
| HDF_DFSD_STARTSLICE |
| HDF_VD_GETNEXT |
| IDLcomActiveX |
| IDLgrMPEG |
| INP, INPW, OUTP, OUTPW |
| ITCURRENT |
| ITDELETE |
| ITGETCURRENT |
| ITREGISTER |
| ITRESET |
| ITRESOLVE |
| LIVE_Tools |
| LIVE_CONTOUR |
| LIVE_CONTROL |
| LIVE_DESTROY |
| LIVE_EXPORT |
| LIVE_IMAGE |
| LIVE_INFO |
| LIVE_LINE |
| LIVE_LOAD |
| LIVE_OPLOT |
| LIVE_PLOT |
| LIVE_PRINT |
| LIVE_RECT |
| LIVE_STYLE |
| LIVE_SURFACE |
| LIVE_TEXT |
| LJLCT |
| MPEG_CLOSE |
| MPEG_OPEN |
| MPEG_PUT |
| MPEG_SAVE |
| MSG_CAT_CLOSE |
| MSG_CAT_COMPILE |
| MSG_CAT_OPEN |
| ONLINE_HELP_PDF_INDEX |
| PICKFILE |
| POLYFITW |
| PREF_MIGRATE |
| REWIND |
| RIEMANN |
| RSTRPOS |
| SET_SYMBOL |
| SETLOG |
| SETUP_KEYS |
| SIZE Executive Command |
| SKIPF |
| SLICER |
| STR_SEP |
| TAPRD |
| TAPWRT |
| TIFF_DUMP |
| TIFF_READ |
| TIFF_WRITE |
| TRNLOG |
| VAX_FLOAT |
| WEOF |
| WIDED |
| WIDGET_ACTIVEX |
| WIDGET_MESSAGE |
| IDLffLanguageCat |
| The IDLDrawWidget ActiveX Control |