Browser Extension for IE

We are developing a user application in C#/.NET. We are interested in developing a small, lightweight browser extension for IE (and possibly Firefox) that our installer could install (when the user installs us)and that would subsequently call our application (if we were running) and pass parameters (such as URL, title, meta tags) each time the user visits a page on the Web. The program would not involve any user-visible UI, cannot have any adverse impact on browsing, must be small in size, self contained, and needs to be cleanly installable and uninstallable without special permissions. I'm not sure what the best way to call us would be. Invoking a program we provide as an .exe and passing command line parameters would be very inefficient. If there were some way for you to call a class in our .NET code, that would be the best. Does this sound like a feasible project? What would your approach be, and what time and cost might be involved? ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). * * *This broadcast message was sent to all bidders on Monday Apr 10, 2006 10:42:54 AM: Hello Bidders, We tahnks you for your kindness to spare the time out of your busy schedule and place bid on our project. We need to discuss your offer with the partners to see whcih one of you will be selected. If anyone has not posted a bid then they are requested to do so by the end of tomorrow so that we can decide which part to select for this job. Sincerely, Ajay * * *This broadcast message was sent to all bidders on Saturday Apr 15, 2006 2:45:10 PM: I've a new simple BHO project for which I require an estimate of time and cost. Project's specifications are mentioned below. Please provide a quote for the develoopment of this BHO. I need a BHO which can monitor IE's "paste" [login to view URL] paste action's target include all controls (such as input or object etc) in different frames,does this possible? Another requirement is monitor upload files. when those event occurs, give user a warning box to assure. I need this project because I have a project which need a BHO to protect IE user not leaking secret info unconsciously. So when he copy to a IE window, a warning box should appear. Now we can capture "onPaste" event of text or textarea, but richedit control's paste can't be captured. You can try it by gmail's edit new mail. so, we need BHO for that. Also we need another assure-box for submit upload file. When user press submit button, a warning box list all files to be uploaded appears. User can cancel or commit. Is this possible by BHO? How much and how soon? ## Platform Windows