I have a "Main Project", a standard exe, with references to serveral
DLLs and OCXs that I have built (custom controls).  All the DLL/OCX
projects have binary compatibilty set so the CLSID will not change on
rebuilds.

I have been able to open this project for the last six month with no
problem.  This afternoon, when I opened the project I suddenly get the
following message in visual basic:

Class <XXX> of <YYY> control was not a loaded control class

and Message to the frmHHHH log file

I checked the "Main Project" .vbp file in Notepad and discovered that
VB replaced my reference to a OCX to another one that did not exists,
the file ended in .OCA  I had remove the invalid reference and then
open my project in VB.  This removed the offending error message.

Has anyone come across this error before? I have check MSDN and KB but
found nothing on it.  I have seen serveral posting on this problem.

Thanks in advance.