| Constant | Value | Description |
| cc2InvalidProcedureCall | 5 | Invalid procedure call |
| cc2BadFileNameOrNumber | &H34 | Bad file name or number |
| cc2FileNotFound | &H35 | File not found |
| cc2InvalidPropertyValue | &H17C | Invalid property value |
| cc2SetNotSupportedAtRuntime | &H17E | Property cannot be set at run time |
| cc2SetNotSupported | &H17F | Property is read-only |
| cc2InvalidObjectUse | &H1A9 | Invalid object use |
| cc2WrongClipboardFormat | &H1CD | Specified format doesn't match format of data |
| cc2DataObjectLocked | &H2A0 | DataObject formats list may not be cleared or expanded outside of the OLEStartDrag event |
| cc2ExpectedAnArgument | &H2A1 | Expected at least one argument. |
| cc2RecursiveOleDrag | &H2A2 | Illegal recursive invocation of OLE drag and drop |
| cc2FormatNotByteArray | &H2A3 | Non-intrinsic OLE drag and drop formats used with SetData require Byte array data. GetData may return more bytes than were given to SetData. |
| cc2DataNotSetForFormat | &H2A4 | Requested data was not supplied to the DataObject during the OLESetData event. |
| cc2InconsistentObject | &H8BA6 | Internal state of the control has become corrupted |
| cc2ErrorDuringSet | &H8BA7 | Unable to set property |
| cc2ErrorOpeningVideo | &H8BA8 | Unable to open AVI file |
| cc2ErrorPlayingVideo | &H8BA9 | Unable to play AVI file |
| cc2NoValidBuddyCtl | &H8BAA | BuddyControl property must be set first |
| cc2VideoNotOpen | &H8BAB | Must open AVI file first |
| cc2AutoBuddyNotSet | &H8BAC | AutoBuddy not set, no potential buddy controls found |
| cc2ErrorStoppingVideo | &H8BAD | Error trying to stop playing AVI file |
| cc2ErrorClosingVideo | &H8BAE | Error closing open AVI file |
| cc2CantStopAutoPlay | &H8BAF | Stop method does not effect AutoPlay property |
| cc2BuddyNotASibling | &H8BB0 | BuddyControl must be a separate control within the same container |
| cc2NoUpDownAsBuddy | &H8BB1 | An UpDown control cannot be buddied with another UpDown control |