Issue: With CLE 4.6, the RestrictedBrowserEXE path is changed while the AA Windows client is expecting the executable to be located in the Windows\System32 folder.
Workaround 1: Install the newer Advanced Authentication 6.4.2 windows client.
Workaround 2: Perform the following modifications on the workstation:
Copy c:\windows\system32\ncle\restrictedbrowserexe.exe to c:\windows\system32.
Copy c:\windows\system32\ncle\restrictedbrowserexe.dll to c:\windows\system32.
Modify the system path to include c:\windows\system32\ncle.