Here's something you might want to do without setting the Environmental variables.
Try setting up fields that Inherit values.
Set up the form that will inherit the values with the following:
In the FORM's properties, under the Defaults tab, check the "Formulas inherit values from selected document". The document you previously had open is actually considered the selected document.
For the fields that you want to inherit the values, set them up with "Compute when composed". And for their formula, put the previous document's field that you want to inherit from.
Here's the interesting thing, but can be confusing- the new form (I'll call a child form to make things simple, but it doesn't have to be a response document) can have fields with the same names, but those fields do NOT have to inherit the previous form's fields of that name. However They can!
For example-
The first form, has a Name field (I have to try to persuade you here- try to change it to a "last name" and "first name" fields- Name is often an object property and cause problems down the line if you decide to do some Object Progamming. The same goes for Date which is more often than not, a Forumla. There are many like this, but I degress)...
Okay, back to my example-
The first form has a field named "LastName". And you want the same field in your child form (2nd one composed). The child form ALSO has a "LastName" field, but it's Type is Compute when Composed, and it's formula is "LastName". You'd think at first glance that this was a recursive loop, but it's not- LastName in the formula IS refering to the previous document, not itself.
Okay, sometimes I'm not very clear, so if you didn't understand, let me know.
Also, depending on what the second form is doing however, it may be that you just want to use a DialogBox (for some great examples of this, check out the Buisness Cards form the Local Address book database. Use your own if you feel safe, or create a new one- then check out the buttons, and how it calls other forms, such as "(NameHelper)".)
I hope this helps you out without your needing to use the Environmental Variables.
-Mogryph