I have a "Core" workbook which several workbooks can use. Right now I have
to physically open the Core workbook and point it to the whichever workbook
it should be looking at now.

How can I determine what is the Core workbook currently linked to using VBA?
The ActiveWorkbook.ChangeLink takes as its first argument the name of the
workbook to which it is currently linked.which I have to replace.

The below is from a recorded macro. My hangup is getting the name of the
existing workbook for that first argument.

ActiveWorkbook.ChangeLink Name:="Jamie11032005XXX.xls", NewName:= _
"PremiumFinancingJamie.xls", Type:=xlExcelLinks
..