Getting "Unhandled Exception at startup - File access denied" error after entering key at first l (4246130)

After launching SQL Navigator for the first time and enter the license key and site message, I get an "Unhandled Exception at startup - File access denied" error.

For SQL Navigator 4.x versions:
Create a text file named Authorization12.key manually and place it in the C:\Program Files\Quest Software\SQL Navigator 4.x directory.

The file should contain your license key and site message in the first two rows, like this:
0-00000-00000-00000-00000
Site Message


For SQL Navigator 5.x versions:
Create a text file named Authorization12.key manually and place it in the C:\Documents and Settings\<Profile_Name>\Application Data\Quest Software\SQL Navigator 5.x.x directory.

The file should contain your license key and site message in the first two rows, like this:
0-00000-00000-00000-00000
Site Message


For SQL Navigator 6.x versions:
Create a text file named Authorization12.key manually and place it in the C:\Documents and Settings\<Profile_Name>\Application Data\Quest Software\SQL Navigator directory.

The file should contain your license key and site message in the first two rows, like this:
0-00000-00000-00000-00000
Site Message