License issue with Quartus II 6.0

Hello,

I have been designing projects using Quartus II 6.0 / NIOS II 6.0 which I got by purchasing a EP2c35 development board in 2006. ( the devices used are mostly Cyclone II)

I have been able to compile and program boards with this software till 2015 on a particular PC XP.

Unfortunately the PC got crashed and had to be reformatted.

(BTW ,the reason I do not want to upgrade to higher Versions ( like 13.0 which come with license) is that in these versions the SOPC builder is replaced by QSys which requires redesign and relearning the new concepts. )

Now when I load the ver 6.0 software from the CDs , I am unable to get a proper license to compile successfully.

On the advise of Altera support, I obtained a license file( for versions earlier than 8.0) but I get this error when generating a system with SOPC builder

============================================# 2018.02.21 12:32:01 (*) Starting generation for system: CAS4018A_feb2018_system.

...# 2018.02.21 12:32:03 (*) Running Generator Program for cpu_0# 2018.02.21 12:32:04 (*) IP functional simulation model enabled: Uncheck System Generation Simulation box for faster generation if HDL Simulation not required.# 2018.02.21 12:32:05 (*) Checking for plaintext license.# 2018.02.21 12:32:05 (*) Plaintext license not found.# 2018.02.21 12:32:05 (*) Checking for encrypted license (non-evaluation).# 2018.02.21 12:32:06 (*) Encrypted license found. SOF will not be time-limited.# 2018.02.21 12:32:14 (*) Creating encrypted HDL# 2018.02.21 12:32:16 (*) Creating IP functional simulation model

Error: Feature Compiler is not available with your current license, or license does not exist# 2018.02.21 12:32:19 (*) c:/altera/quartus60/bin/quartus_map cpu_0 --simgen --simgen_arbitrary_blackbox="+cpu_0_test_bench;+cpu_0_jtag_debug_module_wrapper" --simgen_parameter=CBX_HDL_LANGUAGE=verilog,SIMGEN_RAND_POWERUP_FFS=OFF,simgen_initialization_file=simgen_init.txt command returned 3

Error: Generator program

for module 'cpu_0' did NOT run successfully.

===========================================================

On examining the license .dat file ( attached ), I find that the expiry date for the software is same as the creation date , in this case 20th Feb 2018.

How can I continue to use the ver 6.0?

I have to make a few modifications to the designs I did in 2007 and reprogram the boards and am in urgent need for a resolution of this issue.

Any help is highly appreciated.

Krishna