Your Current Security Settings Do Not Allow This File To Be Downloaded

Downloads on Windows Server:-

I found that in addition to enabling "File Download" (Tools > Internet Options > Security (tab) > Internet > Custom Level > Downloads >> File Download) you also have to Enable (or set to Prompt) these other two options:
"Launching applications and unsafe files" and
"Launching programs and files in an IFRAME" (this one is only needed if your download occurs in an IFrame),
These 2 options are found under the "Miscellaneous" subsection, on the same settings screen as the "File Download" option.
After making these changes, I was then able to download files from sites, without having to put them into the "Trusted Sites" zone.

Stop/ Disable / Turn Internet Explorer Enhanced Security Configuration in Windows Server 2008

Select the root of the Service Manager navigation pane, and under the Server Summary click Configure IE ESC, which is part of the Security Information section. A dialog box appears, letting Internet Explorer Enhanced Security Configuration be enabled/disable separately for normal users and administrators.

Trend Micro Titanium Maximum Security 2013

If you have bought Trend Micro Titanium Maximum Security 2013 for your home computer which is a Mac you would be surprized to see they don’t bundle Mac version in it. The only way to install and use Trend Micro Titanium Maximum Security 2013  on Mac or even Macbook Pro (without CD/DVD) is to follow these instructions for activating and installing Internet Security for Mac/Smart Surfing for Mac bundled with Titanium

Manually Uninstalling Oracle in Windows

• Uninstall all Oracle components using the Oracle Universal Installer (OUI).
• Run regedit and delete the HKEY_LOCAL_MACHINE/SOFTWARE/ORACLE key. This contains registry entires for all Oracle products.
• Delete any references to Oracle services left behind in the following part of the registry (HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/Ora*). It should be pretty obvious which ones relate to Oracle.
• Reboot your machine.
• Delete the "C:\Oracle" directory, or whatever directory is your ORACLE_BASE.
• Delete the "C:\Program Files\Oracle" directory.
• Empty the contents of your "C:\temp" directory.

Oracle Database connection issues

ORA-12514: TNS:listener does not currently know of service

ORA-12541: TNS:no listener

ORA-12545: Connect failed because target host or object does not exist

ORA-12154: TNS:could not resolve the connect identifier specified

ORA-12560: TNS:protocol adapter error

ORA-12514: TNS:listener does not currently know of service requested in connect descriptor

 

Ed Stevens has an excellent post for all sorts of Oracle connection problems

http://edstevensdba.wordpress.com/2011/03/19/ora-12514/

http://edstevensdba.wordpress.com/2011/02/09/sqlnet_overview/