How to delete default folder "Contacts" (olFolderContacts) in a .pst file

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Outlook version
Email Account

it is normally no possible to delete the default folder "Contacts" (olFolderContacts) in a .pst file.

Would it be maybe possible to delete via VBA and how?
I tried via VBA macro but the folder can't be delete:

Sub DeleteFolder()
    Dim olApp       As Outlook.Application
    Dim olNamespace As Outlook.NameSpace
    Dim olFolder    As Outlook.MAPIFolder
    Set olApp = New Outlook.Application
    Set olNamespace = olApp.GetNamespace("MAPI")
    'Set olFolder = olNamespace.Session.folders("2. Archiv_Gelöschte Objekte").folders("Contacts")
    Set olFolder = olNamespace.Session.folders("nikolay@chervenkov.de_Lokal").folders(olFolderContacts)
    If msgbox("Soll der Ordner gelöscht werden?", vbYesNo + vbQuestion, "Löschen?") = vbYes Then
              msgbox "Ordner wurde gelöscht", 64, "Hinweis"
    End If

End Sub

But any other methods are welcome.

It's possible to delete the default folders using a macro, but if the data file is set as default, it will be recreated. Hiding is generally a little better, but the default folders are occasionally unhidden by outlook, especially if in an exchange mailbox.

if the data file is not set as default, you can delete the default folders using a macro and they won't return unless you set it as default.

this article has the macro code that can do it How to Hide or Delete Outlook's Default Folders
Diana thank you very much. Excellent!

> if the data file is not set as default, you can delete the default folders using a macro and they won't return unless you set it as default.

After I have set another .pst as default it was not possible to delete "Contacts".

I have to use first your macro to insert first the property "PR_ATTR_HIDDEN, PidTagAttributeHidden, ptagAttrHidden" becouse in MFCMAPI I didn't have "Quick Step Settings" folder to select and to copy "PR_ATTR_HIDDEN, PidTagAttributeHidden, ptagAttrHidden" entry: The Method via Copy&Paste in MFCMAPI was not possible.

But if I know now the all data of this property "PR_ATTR_HIDDEN" is it possible to insert all this data in in MFCMAPI manually without to use a external macro?

Tag: 0x10F4000B


Property Name: PR_ATTR_HIDDEN

Other Names: PidTagAttributeHidden, ptagAttrHidden


After Copy and Paste you will show:
Enter interface for destination and set flags Flags:

0x00000001 MAPI_MOVE


0x00000004 MAPI_DECLINE_OK

0x00000008 MAPI_DIALOG

Interfaces (abbreviated list)

{00020303-0000-0000-C000-000000000046} IID_IMAPIProp

{00020307-0000-0000-C000-000000000046} IID_IMessage

{0002030B-0000-0000-C000-000000000046} IID_IMAPIContainer

{0002030C-0000-0000-C000-000000000046} IID_IMAPIFolder


{00020303-0000-0000-C000-000000000046} = IID_IMAPIProp


You can set the property using mfcmapi - if you don't have the folder I mentioned, there are other hidden folders - any folder you see in mfcmapi but not in outlook has the flag.

if the data file is not your default folder, you can delete the folder using mfcmapi (it can't be deleted from the outlook interface even if no longer default - outlook sets a property marking it as a default - i don't recall which property tho).
it was possible to hide the default "Contacts" folder via your macro (and after that via MFCMAPI) without problem.
The entry "PR_ATTR_HIDDEN..." was not in any folder.

> any folder you see in mfcmapi but not in outlook has the flag

hmm ... I've been looking for a long time and can not find anything. Only after run the macro I have get the entry "PR_ATTR_HIDDEN..."

Is it not possible to insert a entry manually in MFCMAPI? Only Past&Copy?
You can type it in, copy and paste removes any problem of mistyping and is a lot faster for the average user.

I'll have to boot up an outlook 2007 machine - there are folders in it marked hidden but I don't recall offhand which ones are in 2007.
Hello Diane!

Everything is OK! It does not matter.

I just wrote it as a hint for other users.

In my .pst-storage file it was work first via the macro (to get this property "PR_ATTR_HIDDEN...").

Then purely from interest I have searched for a way how this data can be entered manually inside of MFCMAPI Tool, but could find no way.

Thank you very much for your great support and excellent documentation!


Wow, Outlook 2007 (at least with a pst) doesn't have any hidden folders within the personal store folders.

This video shows how to do it - just just need the property value from the end of the URL - 0x10F4000B and Outlook will do the rest for you.
o, yes … all right!
Now I know in the feature how to put a new property in MFCMAPI directly.

Thank you a lot Diana!
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