this can't be rocket science and I'm sure I've done it elsewhere but I can't seem to find a working example. The following code appears to work, but I'm not seeing anything in the popup:

attachfile=Getfile()
If Empty(Thisform.popattached.RowSource)
Public Array parray(1)
Else
Dimension parray(Alen(parray)+1)
Endif

If Not Empty(attachfile)
If Empty(parray(Alen(parray)))
parray(Alen(parray))=attachfile
Endif
Endif
If Empty(Thisform.popattached.RowSource)
Thisform.popattached.RowSource=parray
Thisform.popattached.RowSourceType= 5
Endif

Thisform.popattached.Requery
Thisform.Refresh

I can see all the values being properly assigned and stored in the array. The value of the rowsource is confusing me. Instead of showing "parray" the name of the array that I've assigned to rowsource, I'm getting the first row of the array only.

Presumably I'm doing something stupid and I would welcome someone putting me out of my misery.

Thanks