Active Auction House is a web based auction software designed for the auction house business (ex. ubid.com). Only the administrator can add products. Registered users are allowed only to bid on the products. It can handle Standard, Dutch, and Reverse auctions. It can easily be integrated to your existing site because is completely configurable. You only have to modify 2 file (includes/htm_top.htm and includes/htm_bottom.htm).

Features
web based WYSIWYG (What You See Is What You Get) auction listing editor
Upload up to 5 pictures/documents per item listing
Allow Auction, Reverse Auction, Quick Sale
Define unlimited depth and number of categories
Automatically create Gallery Picture or Thumbnail (requires ASPImage)
Items Bidding Module
Proxy Bidding
Dutch Auction
Bid Summary
mail an auction to a friend
Account Module
Current Bid
Items Won
Answer Questions
ClosingThis Week Site Statistics
Advance Search Features
search all words
highlighted searches
exact string lookup using "+" ex. "made+in+USA" seaches the whole word "made in USA"

Active Auction House is the Demo version. The full version can be purchased by clicking on the "CLICK HERE TO ORDER" button below for around  498USD.