If you cant open Outlook attachments and get a message like -

Can't create file : Document.xxx. Right-click the folder you want to create the file in, and then click properties on the shortcut

This is caused with opening attachments in the temporary OLK folder and either saving them there or for some reason they dont delete when outlook closes. The folder get full and causes problems when opening further attachments.

Do the following-

1. Open REGEDIT.EXE and go to Edit -> Find... In the Find dialog box type "OutlookSecureTempFolder" without the quotes and locate that registry key.

2. The key will contain the actual folder location, and will look something like:

C:\Documents and Settings\%USER_NAME%\Local Settings\Temporary Internet Files\OLKxxx\ (where xxx is a random letter or number)

3. Copy the location of that folder.

4. Click on Start -> Run... and paste the folder location from step 4 then click OK.

5. Windows Explorer will open that folder. Delete all files present.

6. Restart Microsoft Outlook and you should be able to open your attachments.

The above works most of the time but the OLK# folder is really difficult to find as its hidden. Ive since found it best to hunt it down via a command prompt and delete ( DEL /s) the contents from there.....