Roger Barker, G4IDE sk, was the program author of UI-View and Winpack. UI-View is the most used client program for APRS, UI-View32 has become the reference for other programs. Winpack is a packet radio program with full FBB BBS support and the reference for that application.
The APRS community honored Roger's contribution to our hobby:
The APRS-IS Tier 2 Servers Tribute
The APRS-IS CORE Servers Tribute
A Final Thank You! by Ken Collins - G4FIP
The Atlantic Tribute during Roger's funeral created by UI-View users worldwide
On July 31, 2004, the TAPR had awarded Roger with the "TAPR Lifetime Achievement Award".
Here you find mirrors of Roger's original UI-View and Winpack sites, copied end of September 2004:
According to Roger's last wishes the sites had been closed and the program codes destroyed. Therefore the versions UI-View32 V2.03 and Winpack V6.80 will remain the last issued.
Registration of the programs is free now, but a donation for a cancer research organisation is requested. The license conditions are unchanged. UI-View32 may only be used by licensed Radio Amateurs for the use in their hobby.
For actual registration information for UI-View and Winpack go to Andy's ( MØCYP) page. For more details read the monthly circular on the UI-View SIG in English, German, Spanish and French language, which I pasted here.
New sites for UI-View and Winpack had been opened in November 2004:
PSK31 server for HF
In 2001 Roger had written a PSK31 server which can be used with all major APRS clients.
Read the 'Getting Started'. At the end of the page you find a link to download the server.