Open XML Forms not using KM

Hi experts,

I have the following request:

Place a link in the Portal that displays a custom XML Form document to fill in.

By now I have always filled in new XML Forms documents by accessing KM and selecting 'New > Form > <custom form>'.

Now I need to access a XML Form by clicking a link in Portal (without accessing KM). Is there any special iView already created for this? Is this possible in any other way?

Many thanks in advenced and regards

Stella