There is a 'Source Code Program for Microsoft Dynamics GP' which you can find information here: businesscenter.mbs.microsoft.com/ This page mentions the following:
“With Microsoft Dynamics GP, starting on version 9.0, Microsoft introduced a source code program for Certified Partners and ISVs.
The Source Code Program will provide Source Code access to source code for the core modules, Field Service, Financials, US Payroll, CAN Payroll, Human Resources, Fixed Assets, Smartlist, DynUtils, Revenue Expense Deferrals, Manufacturing, GP SQL Stored Procedures and Project Accounting (excluding Professional Services Automation applications), as well as tax updates and service packs (collectively the “Source Code”).
This Source Code Program is not available for customers and it supersedes and replaces the source code program previously made available by Microsoft for the Great Plains products known as Great Plains Source Developer Program (“Developer Source Program”).
Please email gpsource@microsoft.com with any questions you may have on the program.”
It also has links to a 'Source Code Application', 'Source Code Program FAQs', '2010 Source Code Program License Agreement' and 'Source Code Program' document and PDF files.
As it mentions, you can email any questions to gpsource@microsoft.com, as they would be more able to answer these type of questions than we are able here on the Dynamics GP technical support team.
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