Outlook 
Outlook SecureTemp Files Folder
Exchange
Account changes to the Default Account
Restore (or Hide) the Open Save Dialog |
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When you open an email attachment, Outlook displays the Opening Mail
Attachment dialog with Open and Save
buttons for some file types.
When the attachment is a Level2 attachment type, the "Always ask before opening" option is always disabled as part of Outlook's increased security. When you use Vista, the Always ask before opening option may be disabled for file types normally considered safe. When this happens, you need to always respond to the dialog and choose whether to open or save the attachment. Whether its enabled or disabled is is controlled by the UAC (user access control) and if you run Outlook as an administrator Shortcut Properties Dialog 
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EditFlags Registry Key |
The EditFlags binary value is the key. In Outlook 2007 the EditFlags value does not exist but creating it with 00 00 01 00 data
gets rid of the dialog and opens the message.
This example is for GIF extension: [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\giffile] @="GIF Image" "ImageOptionFlags"=dword:00000003 "EditFlags"=hex:00,00,01,00 HKEY_LOCAL_MACHINE\SOFTWARE\Classes\giffile\ EditFlags name value contains binary data of 00 00 00 00 = display 'always ask' dialog 00 00 01 00 = always open, no dialog ImageOptionFlags controls whether its opened or saved. Word 2007 DOCX extension is HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Word.Document.12 DOC extension: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Word.Document.8 Adobe PDF HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AcroExch.Document |
Find the Keys |
In some cases, you can find the key for each extension by looking at
the .extension
key. Under the extension type, you may see subkeys for
PersistentHandler and ShellEx along with one identifying the file
type by name. Look for that name under Classes. Ie, .docx has a
subkey for Word.Document.12: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.docx\Word.Document.12 so the key you'll add an EditFlags value to is: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Word.Document.12 Doc is HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.doc\Word.Document.8 so the key you'll add an EditFlags value to is: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Word.Document.8 Screenshots: Registry for \.docx\Word.Document.12  Registry for Classes\Word.Document.12  Note that not all of the .extension keys have a key that identifies the file type by name. |
IE's "Always Ask..." dialog |
In Windows XP, the "Always ask" dialog is shared between IE and
Outlook. If you set it to always open in one application, it will
always open in the other. In Vista the "Always ask" settings are stored in different keys. The settings for IE are stored under the following key. Delete the values for the file types you want to display the dialog. HKEY_CURRENT_USER\Software\Microsoft\Windows\Shell\AttachmentExecute\{0002DF01-0000-0000-C000-000000000046} |
More Information |
Keep in mine that opening an attachment from the preview pane opens it in Read only mode while opening the message first opens the attachment so you can edit it and save changes. |
