Application to Read/Write/Update Quickbooks data -

I need simple codes to perform all necessary data entry tasks on Quicken / Quickbooks Company File, including but not limited to add, delete, update, query all necessary data in Quickbooks company file such as: all products information (all, certain category & single) customer details (all & single customer) invoices (all & single) transaction details (all & single based on invoice) all other data entry related, etc (single, multiple, filter) All of these functionalities can be wrapped as a single DLL project. However you need to provide the sample application using this DLL and along with a sample Quickbooks company test file. It doesn't have to be fancy UI coz the application is just used to ensure that the DLL working as it's supposed to be. Has to be Object Oriented, so just have to instantiate class and use methods within. No hard-coded configurations, configurable from appConfig. ----------------------------------------------------------- Notes: The DLL needs to communicate directly to the quickbooks company file (.qwb), NOT from IIF file. ## 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). ## Platform Codes are written purely in .NET, preferrably .NET 2.0 Framework, otherwise .NET 1.1 Framework will do. Should be able to run under any Windows Operating Systems.