USPS Electronic Stamp Creation

I am currently creating USPS labels using the Delivery Confirmation API. Unfortunately, I can't find any information anywhere on how to programmatically create an electronic stamp for the label. Does anyone have experience doing this? Is it even possible? I know you can manually create postage using the USPS tool called Click n ship, but there doesn't seem to be an API for that piece. Any help would be awesome. Thanks.

Since no one knows ... You can use the Endicia Label Server API, http://www.endicia.com. They are a partner with USPS and you can create USPS labels on the fly with postage. In their documentation you will see examples with PHP, C# and VB.