We had one of our web application deployed inside ISV folder in CRM 2011. We were showing one of the aspx pages in it inside an IFrame of a form.
First we specified the relative url like this for URL field in CRM form
However on form we were getting page not found error.
Using developer tools, we found out that it was taking the url (src) for the iframe as
It was appending the organization name to it.
In CRM 4 this wasn’t the case.
Then we gave the absolute url for URL field in IFrame.
However this time also we got page not found error. The url that it was using was
http://servername/contoso/isv/myWebApplication/Default.aspx i.e. again appending orgname to it.
crmForm.all.IFRAME_Map.src=”/ISV/ myWebApplication / Default.aspx”;
Hope it helps !