The Application has failed to start

 Hi

Error:

The Application has failed to start cdn_sfl401as.dll was not found. Please reinstall ...

while launching Orcad V16.6 Lite

I downloaded the zip and installed under XP Pro service Pack 3 using the Administrator account, and selected the All Users option.

Then loged out and back in with a user account but got that error when trying to fire it up.

Loged back out and fired it OK under the Administrator account. But I want it to work under any of the users as well. So I reinstalled it few times for no avail.

Now it is not even firing up under the Administrator account. it gives this error no mater which account I use.

 here is the echo of my path

C:\Perl\site\bin;C:\Perl\bin;
C:\WINDOWS\system32;
C:\WINDOWS;
C:\WINDOWS\System32\Wbem;
C:\Program Files\QuickTime\QTSystem\;
%CDSROOT%\tools\bin;
%CDSROOT%\tools\specctra\bin;
%CDSROOT%\tools\PSpice;
%CDSROOT%\tools\Capture;
%CDSROOT%\tools\fet\bin;
%CDSROOT%\tools\pcb\bin;
%CDSROOT%\OpenAccess\bin\win32\opt; 

Many thx for helping.