These articles may help or try asking in the Access groups.
http://www.google.com/search?hl=en&q=MaxLocksPerFile+site%3Amicrosoft.com

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Regards,
Dave Patrick ....Please no email replies - reply in newsgroup.
Microsoft Certified Professional
Microsoft MVP [Windows]
http://www.microsoft.com/protect
>I have recently needed to increase the values in the MaxLocksPerFile
>entries of my registry in order to get Access to run certain update
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>
> Don