Unverified VAC3 FixPaks link as a contribution, FWIW:
ftp://service.software.ibm.com/ps/products/visualagecpp/fixes/v30os2/english-us/fixpak8
IIRC I do insert an extra, undocumented reboot before installing CTD308.ZIP, IIRC/2 to avoid a possible error while updating a *DOODLE* sample.