What is the best way to integrate with quickbooks from C# code? [closed]

Question

from my research it looks like there are basically 3 options.

1: Using COM
2: Using A Webservice and the web connector
3: Using a 3rd party component (and there appears to be quite a few)

Each of these options present a problem for me:
1: I was told I cant use COM
2: This solution seems very hokey to me since I am needing to integrate from a windows service
3: Some of these solutions are rather expensive.

I looks like I am going to have to go the 3rd party route and there are two front runners in my mind:

1: QODBC (http://www.qodbc.com/usa.html)
2: AccessBooks (http://www.synergration.com/AccessBooksUpdater/default.aspx)

My questions, dear reader, are as follows:

1: Which solution (com, web service, which 3rd party) would you use?
2: Why would you choose it over the other options?
3: Is there some other option that I have missed?

Answer 1

I have decided to go with another product not mentioned above called "QuickBooks ADO.NET Data Provider" it is apparently made by the same folks who make the QuickBooks integrator product

The reasons I chose it...

1) It has a remote access component
You install the remote server, and you can access your QuickBooks data from anywhere on your network

2) The remote access component can run as a service
Nuff said

3) Provides a SQL style interface to the QuickBooks data
4) Does some auto magic caching to speed up the data access