Removing Outlooks Block On Attachments

1. Find the reg key [HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Outlook\Security]
2. Add a string value “Level1Remove”  (case sensitive)
3.  Add all extensions you want outlook to let through (".exe;.bat;.url;.ps1;.vbs")

You can also copy the following into unblock.reg and run

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Outlook\Security]
"OutlookSecureTempFolder"="C:\\Documents and Settings\\n002505\\Local Settings\\Temporary Internet Files\\Content.Outlook\\QVYY0LEM\\"
"Level1Remove"=".exe;.bat;.url;.chm;.msc;.ps1"