This error occurs when attempting to open a project:
Library <drive>:\ESRI\Av_gis30\Arcview\bin32\IASrc.dll Failed to Load
IASrc.dll is an Image Analyst Extension DLL file. The project you are attempting to open was created with the Image Analyst Extension loaded, and the DLL file is not being read after upgrading to Arcview 3.2.
Reinstall the Image Analyst extension.