FLEXnet error -2,xxx "Invalid license file syntax"

After installing the permanent license information via the licensing wizard program, the following error message appears when attempting to start ENVI or IDL:

% LICENSE MANAGER: Invalid license file syntax
Feature: idl
Filename: C:\Program Files\Exelis\license\license.dat
License path: C:\Program Files\Exelis\license\license.dat
FLEXnet error: -2,413 System Error: 2 "No such file or
directory"

• These errors might indicate that the license information has been corrupted. Some email programs can corrupt license text, replacing original characters with invalid characters.

• Another cause of license corruption is inadvertent line wrapping introduced by the email program. For example, a line in the license might be changed from (2 lines).

Users of Microsoft Outlook who wish to modify how their e-mail program addresses the points mentioned above can benefit from information provided by Help Article 4096 .

Correct format:

INCREMENT idl idl_lmgrd x.x00 1-jan-0000 0 EC3B7DA4CA19E85C0A71 \
VENDOR_STRING="000011EXELISVIS" \
HOSTID=00b012345678 ck=123

Incorrect format:

INCRMENT idl idl_lmgrd x.x00 1-jan-0000 0 EC3B7DA4CA19E85C0A71
\
VENDOR_STRING="000011EXELISVIS" \
HOSTID=00b012345678 ck=123

If the license file appears to have been corrupted, try to restore the problem characters or line wrapping to its original state. Or, if a separate file attachment of the license information was provided, please use the license information in the file attachment to replace the corrupted license information. You can use the licensing wizard to edit the license file information that has already been installed.