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Registry: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\vv.v\Access Connectivity Engine\Engines

The registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\14.0\Access Connectivity Engine\Engines stores initialization settings for the msjet40.dll database engine, which is used to query or communicate with Access databases. On my computer, I found msjet.dll under C:\Windows\SysWOW64.

Values

Some values that are found in this registry key include:
SystemDB Path(?) and file name of the workgroup information file. Default value is system.mdb
CompactByPKey Specifies if tables, when compacted, are copied in primary key (1) or in base table order (0).
PrevFormatCompactWithUNICODECompression controls if databases version 3.x databases are created with compressed or uncompressed Unicode.
SandBoxMode

Subkeys

Subkeys are (or include?):
These names are referenced by the value Engine in one of the subkeys of HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\14.0\Access Connectivity Engine\ISAM Formats.

SandBoxMode

The value of SandBoxMode controls which functions will be allowed to be called. The value can be set to an integer between 0 (most permissive) and 3 (least permissive):
0 Sandbox mode is disabled at all times.
1 Sandbox mode is used for Access, but not for non-Access programs.
2 Sandbox mode is used for non-Access programs, but not for Access.
3 Sandbox mode is used at all times. This is the default value
The default value is 3 and is set when Access is installed.
See Functions and properties in Access blocked by sandbox mode

See also

The parent key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\14.0\Access Connectivity Engine.
( TODO engines )

Links

https://docs.microsoft.com/en-us/office/vba/access/concepts/miscellaneous/0-database-engine-driver

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