Code to compact Access 2010 database under


I am developing an application in VB.Net, I'm using an access 2010 database to store my data for the application.

I would like my application to compact the database when the user clicks a button on my windows form.

I've found several things on the net for an Access 2003 database (.mdb), but I am wondering if the same applies to an access 2010 database (.accdb).

A sample of the code that I found on the net is below:


    Private Sub CompactDB_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles

        Dim JRO As JRO.JetEngine
        JRO = New JRO.JetEngine

        'The first source is the original, the second is the compacted database under an other name.
        JRO.CompactDatabase("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\Program Files\VSoft\AppMiss\NewAppDB.mdb; Jet OLEDB:Engine Type=5", "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=C:\Program Files\VSoft\AppMiss\NewAppDBComp.mdb; JetOLEDB:Engine Type=5")

        'Original (not compacted database is deleted)
        File.Delete("C:\Program Files\VSoft\AppMiss\NewAppDB.mdb")

        'Compacted database is renamed to the original databas's neme.
        Rename("C:\Program Files\VSoft\AppMiss\NewAppDBComp.mdb", "C:\Program Files\VSoft\AppMiss\NewAppDB.mdb")

        'User notification
         MsgBox("The database was compacted successfully")

     End Sub

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Can this code be used with .accdb files, by just changing the extension from .mdb to .accdb? Or would the code differ for Access 2010 versions?

Kindly advise.

KevinInformation TechnologyAsked:
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Rey Obrero (Capricorn1)Commented:
i don't think you can use JRO for .accdb versions of access db..

try something like this
Dim dbe As New Microsoft.Office.Interop.Access.Dao.DBEngine

dbe.CompactDatabase("C:\folder\yourDB.accdb",  "C:\folder\yourDB_New.accdb", , , ";pwd=<yourDB password>")

'Rename the old file with the date and time appended, then copy the new repaired file back.

Rename("C:\folder\yourDB.accdb", "c:\folder\yourDB_Old " & Format(Now(), "yyyymmdd hhnnss") & ".accdb")

Rename("C:\folder\yourDB_New.accdb",  "C:\folder\yourDB.accdb") 


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KevinInformation TechnologyAuthor Commented:
Thanks Rey, Ill give it a try.

Can you also confirm something for me please. The workstation where the application and database sit will not have office 2010 installed. I've been reading that I can installed  the 'Microsoft Access Database Engine 2010 Redistributable' package. But some posts say I still need to have office 2010 installed and some posts say i dont.

Are you able to confirm?

Kindly advise,

KevinInformation TechnologyAuthor Commented:
Thanks Rey.
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