I have the same issue. I've opened a case with support and they are investigating.  Meanwhile, I've found a workaround. It seems the issue is related to pnmicsrv.dll for vworkspace versions greater than 7.6 GA. At least the issue appeared to us after apply a hotfix to this version and it reappeared after upgrade to v8. In both cases I've solved it replacing the pnmicsrv.dll file in our template with the dll of the 7.6 GA version
Hello,  like a previous post about kerberos ticket error, I'm doing several tests in order to implement vWorkspace 8.  When I connect to VDI Desktop (without kerberos, or with Initial Only, not SSO) appears an IEAK error. Sorry because the screenshoot attached and some descriptions are in Spanish   The guest operating System is Win 7 SP1 enterprise with last patches, RDP8 activated and Explorer 9. Guest OS is Spanish localized.  [IMAGE]  Detailed Description:  Firma con problemas:   Nombre del evento de problema:    BEX   Nombre de la aplicación:                  rundll32.exe_iedkcs32.dll   Versión de la aplicación:                    6.1.7600.16385   Marca de tiempo de la aplicación:   4a5bc637   Nombre del módulo con errores:     PNMicSrv.dll_unloaded   Versión del módulo con errores:      0.0.0.0   Marca de tiempo del módulo con errores:    513eb9a9   Desplazamiento de excepción:         7502d6a1   Código de excepción:                        c0000005   Datos de excepción:                           00000008   Versión del sistema operativo:          6.1.7601.2.1.0.256.4   Id. de configuración regional:          3082   Información adicional 1:                   0a9e   Información adicional 2:                   0a9e372d3b4ad19135b953a78882e789   Información adicional 3:                   0a9e   Información adicional 4:                   0a9e372d3b4ad19135b953a78882e789   Lea nuestra declaración de privacidad en línea:   [URL]
IEAK error when connect to VDI Desktop in vWorkspace 8