Does the form filling party need to have a On Demand CM account?
No. The form filling party can be any one with an email address.

What is Offline & Online form filling?
Online Form filling is when the user fills in the form while connected to the internet. Once they fill in all the values, they simply click on Submit button to submit the form
Offline Form Filling is when user downloads the form, saved it in their local computer, fills it and then uploads the form back for processing.
On Demand CM supports both offline & online form filling.

I click on link in email to open the form for filling & form does not opens up?
For online form filling, you need to be on Microsoft Windows OS. If you are using any other OS you will not be able to open the form for online filling.

I am getting following screen when opening the form. What should I do?

Click on Remember my action and then click on Allow button to proceed.

I am getting Malformed Error Exception when I open the PDF form
This is an open bug in our support form and this error occurs at times due to esignatures embedded in the document. Simply click on OK to proceed.

I am getting 'Beyond Adobe Screen' when I open a form?
This is an adobe screen that points you to online guide. Click on 'Do Not Show on Startup' check button.