I think you can abort the load simply by having the workbook/add-in close
itself:

ThisWorkbook.Close False

--
Jim
"Gene McCrory" wrote in message
...
| Is there a way to Abort load of an XLA add-in in its Auto_Open or similar
| subroutine.
|
| XLA will contain version information. If user is not using the latest
| version determined by a function, I want the load/AddinInstall Aborted.
| Currently, I use Auto_Open subroutine to call my version check function,
but
| do not see a way to Abort the Auto_Open or load of the add-in.