Adding IPv6 address support to the addressing functions in PAC would essentially require a new PAC specification. Darin has done some work to keep PAC from breaking as more IPv6 features are added. Each interoperability problem should go in a function-specific bug, and be tracked against PAC meta bug 79893. This tracking bug is for implementing IPv6 support, and should have only general implementation discussion. Each function should have a bug. -- I would like to see if a general coding style for support could be discussed here. From reading the existing PAC function code, it seems like several aproaches are mixed together, some harder to read or test than others.

Microsoft has implemented in IE7 and Vista a solution to this: http://blogs.msdn.com/wndp/articles/IPV6_PAC_Extensions_v0_9.aspx and http://blogs.msdn.com/wndp/archive/2006/07/18/IPV6_WPAD_for_WinHttp_and_WinInet.aspx

Ari, the links no longer work. Could you provide updated links? I cannot see why the articles would have been remove. Thanks.

http://blogs.msdn.com/b/wndp/archive/2006/07/13/ipv6-pac-extensions-v0-9.aspx And http://blogs.msdn.com/b/wndp/archive/2006/07/18/ipv6-wpad-for-winhttp-and-wininet.aspx

inactive meta bug..