One step past creating forms during runtime

[jgomes]

I know how to create forms during runtime, using a form that is already made, of course, but...

How do I do something like this:
(this doesn't work)
----------------------------
Dim frm(I) As Form
Set frm(I) = New frmMain
frm(I).Show
----------------------------

VB Does not seem to allow having an integer variable there. For some reason it must be a number. How do I get past this problem?