My 2002 system FE/BE has the relationship the same in both FE and BE and I'm certain I only defined those relationships in the BE. At least I'm pretty sure. :eek:
If a Compact and Repair and zipping do not decrease the size enough, it should be possible to create a BackEnd with no data, just the structures. Import just some of the relevant records and then C&R and zip.
While I'm giving this some thought I thought I'd point out that it is never a good idea to use a *reserved* word for the name of any object you have defined. In this case you have used NUMBER as the name of a field in the "Pest List" table. Here's a link for you to check a name you might want to...
Is there a field in the RecordSource of the mainForm that also appears in the RecordSource of the SubForm that would limit the SubForm to the records you want?
I'm going to assume you are using the LinkMaster/ChildFields properties of the SubFormControl to do your filtering. Are you aware that you can have more than one field listed for each property separated by a ";" ? That may be all you need.