Skip to main content.

Contact Information


Direct questions about installation, development, etc. to the users' mailing list at

Press Inquiries

Direct press inquiries to Stefan Hornburg at


Send questions or comments about this website to


Sensitive reports of security problems can be reported privately to the core developer team at

About Interchange

What Interchange users are saying:

""Interchange" indeed! - It has powered the Department of State's Vienna Training Office's database for 7 years uninterrupted."
Greg Goble, EUR/PPD-VTO.