I need to filter out query strings that are empty that is posted from a previous page.

I am using
For Each item In My_Array
Response.Write("<br>" & item)
Next

to get all variables listed, but it also displays variables that are empty. I need to display variables that exists.

can you help?

try this

For Each item In My_Array
if not IsEmpty(item) then Response.Write("<br>" & item)
Next

can also try IsNull(item) or len(item) > 0