Is there any way to work around the Outlook security update?

I tried all the options mentiond to search for ade; in the .dll and couldn't find it.

The outllib.dll modification works great.

First, you will want to download and install an add-in that lets you easily manage what is on Microsoft's level 1 and level 2 security warning list (Level 1 is "you can't see this", Level 2 is "you must save this to disk first". In a standalone environment, the add-in allows you to move things from Level 1 to Level 2. Download it here:
http://www.slovaktech.com/attachmentoptions.htm

Second, you should edit just one character in the outllib.dll file.

1) Close Outlook.

2) Find the "outllib.dll" file in the "C:\\Program Files\\Microsoft Office\\OFFICE11" folder. OFFICE11 corresponds to Outlook 2003; if you are using an older version like Office 2000, the folder might be OFFICE9 or 10.

3) Make a copy of "outllib.dll" in the same folder (in case you screw it up). I like to call my copy "outllib.original.dll".

4) Open file "outllib.dll" in a hexadecimal editor -- I used XVI32 from here: http://www.chmaas.handshake.de/delphi/freeware/xvi32/xvi32.htm

5) Find the first file type that Microsoft blocks ".ade" In the editor it will look like "ade;" in older versions or "a d e ;" in newer versions. Why is that? Sometimes programmers use an integer to store a byte, the wasted byte is 00 so all text appears to be spaced out. XVI32 has a nice search feature that allows it to look at every other character. So, if you search for "a d e ;" with spaces between the letters and check the "Joker char" box and set the Joker character to 20 (space), you will find the spot we are interested in changing. The default Joker character for XVI32 is 2E (period), so if you want to leave that alone you will search for "a.d.e.;".
6) On the hex side of XVI32, change the hex 61 (a) to 00 (null). Save the file and exit XVI32.
7) I made a copy of the modified file as "outllib.modified.dll" (in case a reinstall or service pack puts the old one back).
8) REBOOT the computer. After you start Outlook you will notice in the Tools, Options dialog that there is a new tab "Attachment Security & Options". If we HAD NOT modified the .dll, anything we moved from the left window to the right window would be available to the Outlook user to save, but not open. Because we modified the file, anything on the left can be opened directly from outlook and anything on the right must be saved to disk first. This seems, backward, but works well. I left .exe files and .url files as types I want to open directly. All other files on the right must still be saved to disk (this is good because I have no idea what a .ade file is and I don't want to open .vbs files). So move everything to the right and then move only items you want to open directly from an email to the left.
9) Note the bold text that says "Restart Outlook to make all changes effective" and then restart Outlook. You are now free to choose what items you want to open directly from Outlook (items on the left).

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Basically install Office 2000 SP3, it then uses the same reg key that Office XP uses to set which file extensions you can receive.

This said, you can only set it to ask you to save to disk, not open from outlook itself.

If you want to unblock ALL attachments in OL2K, you need only change a single character in outllib.dll with your editor. Simply open the file with your editor and search for "ade;". You'll see the string "ade;adp;bas;...", i.e., the list of all extensions to be blocked. Simply replace the very first character in the entire string(the "a" in "ade;") with a null character. You must just be careful not to add or remove characters, just replace them, so you don't screw up any program offsets. That's it.