Additional file types added to the Enterprise Vault (EV) registry value 'ExcludedFileTypesFromConversion' are reset.
EV offers the ability to exclude specific file types from the conversion process. EV achieves this by populating an EV registry value 'ExcludedFileTypesFromConversion' with default file types. Further details on this registry key can be found in the Related Articles section.
An EV administrator may want to add additional file types to exclude further file types from the conversion process.
An issue has been identified where the file type list exceeds 1Kb. In this scenario the registry value is reverted to the default value by EV on the next archiving run.
No error is presented.
This issue is caused by an insufficient memory buffer used within EV. When the length of the registry value data exceeds 1024 bytes, this unconfigurable internal buffer is too small to contain the registry data.
Each EV version can potentially have a different number of default file types specified in the registry value. For that reason the 1024 byte limit can be reached with a different number of additional file types. In EV 10.0.4 there are 121 file types in the default list and this default list of file types has a data length of 994 bytes. This is shown below in a SysInternals Process Monitor output:-
If this data length value is greater than 1024 bytes the file type list exceeds the internal buffer length as described above.
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