qperr.hlp (Topic list)
Important Notice
The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
Run-Time Error Message
 
Run-Time Error 181:  Invalid object reference
 
A method was sent to an object that was not allocated
previously by the New procedure.
 
This error can also occur if the object structure has been
corrupted or overwritten.