I do something like the following to allow the user to view a Crystal Report (where mytable is a variable holding a temporary file name like g:\temp\tmp3293482.dbf):
crApp=createobject("crystalruntime.application")
crReport=createobject("crystalruntime.report")
crReport=crApp.openreport(v_crfile)
crReport.Database.Tables.Item(1).Location=mytable
crReport.ReadRecords

Then I use the CR Viewer to view it:
DO FORM vw_cryst
WITH vw_cryst
.addobject('crviewer1','olecontrol','crviewer.crviewer')
WITH .crViewer1
.height=vw_cryst.height
.width=vw_cryst.width
.EnableExportButton=.T.
.Visible=.T.
.reportsource=crReport
.ViewReport
=MESSAGEBOX("Processing completed. You may view, print, export. . . yada yada")
ENDWITH
ENDWITH

The client noticed that the memory would go from something around 20 megs of use to around 211 megs while a user was viewing the report. The disturbing thing is, it's not clearing the memory once the user exits out of the screen. So I added to the Destroy event of vw_cryst:
RELEASE crApp, crReport
which didn't work, so out of desparation:
crReport=[]
crApp=[]
RELEASE crApp, crReport

Which also didn't work. Why isn't it releasing the memory?

Thanks in advance,
Joy