Norton Antivirus Software Can Cause Errors in DBISAMRecent versions of Norton Antivirus software from Synmantec can cause problems with DBISAM, specifically with respect to temporary tables created by DBISAM in a temporary files folder on a local drive. Norton deems any file created with the extension of .dat (the default DBISAM file extension for tables) in the temporary files folder as needing to be scanned and quarantined, and this can cause two errors to occur:
| Error | Error Message |
| DBISAM_OSENOENT (11010) | Table or backup file '<Name>' does not exist |
| DBISAM_OSEACCES (11013) | Access denied to table or backup file '<Name>' |
To get around this problem, as of version 4.19 of DBISAM we have included three new TDBISAMEngine component properties for specifying the file extensions for temporary tables created by DBISAM during normal operation:
TableDataTempExtension
TableIndexTempExtension
TableBlobTempExtension
Specifying a file extension other than .dat for the TableDataTempExtension property should solve any issues you may have with Norton Antivirus. However, be sure to avoid any special executable file extensions such as .exe, .bat, or .com since that will not fix the problem and may make it even worse.
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