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Revelation Software are pleased to announce the release of the latest version of their popular Universal Driver, version 4.6.

This new version features a brand new installer and support for large records and key sizes has also been greatly enhanced. There are an increasing number of occasions where more intelligence is being built into record keys. As a result, Revelation have found that parts of the system sometimes handles the keys correctly and in other parts it treats them as a bug, resulting in false errors being reported. This issue has now been addressed.

However, this new version will not support unlimited length record keys. Record keys can now be a maximum of 512 characters long. Any keys that exceed this limit will now be ‘illegal’ and applications will be unable to either read, or write them. The server event log will report Linear Hash Error 1016 for this condition. Since this will make the records unreadable, they will be treated as though there is a ‘group format error’ (GFE) in any table that contains them. For this reason, the Database Manager tools in OpenInsight 9.1 have been updated to report the errors (LH Verify) and the ‘Fix’ option has been enhanced to copy them to a new table called DUMP_FIX_SAVE.

Furthermore, there is a more critical fix to address; the an issue with the Fix GFE option on the current ‘Verify LH’ menu. In previous releases, this system silently considers any records with keys greater than 50 characters long to be GFE’s. Anyone running the ‘Fix GFE’ option will lose any records that have keys longer than 50 characters. As a result of this issue, an RDK containing a FIX_LH routine is being included with the Universal Driver 4.6 release. This updated routine will remove the ’50-character-throwaway’ functionality and replaces it with the new ‘512-character-save’ functionality.

In addition to all of the above, the Universal Driver 4.6 now provides backwards compatibility with all previous versions of Linear Hash files, something that was lost from the Universal Driver 3.0 onwards. The client driver’s (not the service) internal file handle management has been enhanced for improved handling of open tables. The Universal Driver can now manage over 300 open and active tables from a single client – although the reasonable design of such an application would not be recommended.

The Universal Driver 4.6 is fully supported on the following servers: Windows 2000 SP1 and later, both 32-bit and 64-bit Windows 2003 SP1 and above and 32-bit Windows 2008. Please note that Novell and Linux servers are not supported at the present time. As with the earlier Universal Drivers, Windows 95/98 workstations are not supported, leaving Windows NT, 2000, XP and Vista Business. or Ultimate as deployment options. The Universal Driver 4.6 currently supports ARev 2.03 or later and OpenInsight version 4.1 or later – 16-bit OpenInsight is not supported.

“This is an especially good release that addresses several long standing issues.” said Martyn Phillips, Business Development Manager for Revelation EMEA. “These issues have only just come to Revelation’s attention because OpenInsight deployed systems that have been in use for many years (some over a decade), are becoming larger and larger and these issues only arise in such circumstances. We are therefore pleased to have these legacy issues addressed before most users eperience them.”

Revelation are therefore urging anyone running Advanced Revelation or 32-bit OpenInsight on a Windows server with or without an older Revelation Network product, to seriously consider this a necessary upgrade.

About Revelation Software
Founded in 1982, Revelation Software delivers a suite of application development tools and companion services that take full advantage of leading network computing architectures, messaging, groupware, and client server platforms. Today, the company's flagship product OpenInsight is the only database development and application environment that provides both Windows and Java-based GUI tools to develop and deploy web-based and client server applications that support native and relational XML, SQL, Lotus Notes and the leading legacy Multi-Value data sources such a ARev, Pick and IBM Universe. There are more than 1.5 million licensed users of Revelation products across 60,000 deployed sites worldwide. For more information visit

Note to editors: Revelation Software is a division of Revelation Technologies. Revelation Software, OpenInsight and JOI are trademarks of Revelation Technologies. All other trademarks and trade names are property of their respective holders.


Martyn Phillips
Revelation Software Limited
+44 (0) 20 8912 1000

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