We installed QODBC 8.0 server edition on a Windows 2003 server running Quickbooks enterprise 8.0.
We created a system DSN to point to the Quickbooks data file.
 

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We did all the required DCOM security changes for the users: INTERACTIVE, IUSR_<server>, and ASPNET.
We also allowed full control to Windows\system32 and C:\Program Files\QODBC Driver for QuickBooks for these 3 users.

The Test connection in the QODBC setup screen works fine. So does the VB Demo application. We did all required settings in Quickbooks.
 
But when trying to connect to the data source through asp
we are getting connection problems. When using the TestDCOM.asp page downloaded from your site we are getting the errors below:
 

 
 
 
Please help!
 
Thanks,
Dan Ferrara

Try looking at: XERCES-COM.dll Error: ActiveX component cant create object and the last post in: Permissions Issue with IIS using AUTHENTICATED USERS