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Tanja1968 bleek hier de oplossing.
Dit staat er:
Ga naar start-uitvoeren, typ regedit, zoek naar:
BlockEveAttachments en verwijder de waarde die daarbij staat. Waarschijnlijk te vinden onder,
HKEY_LOCAL_MACHINE\Software\Microsoft\Outlook Express
Bron:
http://www.helpmij.nl/forum/showthread.php?s=&threadid=153816&highlight=express+vinkje+grijs
en wat uitgebreider:
1. Make sure that no programs are currently running, including Outlook Express
2. Click Start, then Run
3. In the Run dialog box, type "regedit" into the "Open:" field without quotes and click "OK"
4. Once REGEDIT is open, click the plus (+) symbol by HKEY_LOCAL_MACHINE
5. Click the plus (+) symbol by SOFTWARE
6. Click the plus (+) symbol by Microsoft
7. Click on "Outlook Express" once to highlight it
8. In the right hand pane, double-click "BlockExeAttachments"
9. For "Value Data" enter 0 and then click "OK"
10. Exit REGEDIT and restart your machine