error in HFSS"Unable to create child process"

hello every body
when i run programm in HFSS it gives me error:
"*Global - Messages
[warning] Left-alt + shift is currently used by the system to toggle the input language. It is also used in some portions of this application, which may cause the input language to change unexpectedly.
packagehfss (C:/Program Files/Ansoft/HFSS12/Examples/Projects/packagehfss/)
packagehfss (DrivenTerminal)
[error] Unable to create child process: mesh3d, error code = 5
[error] Simulation completed with execution error on server: Local Machine.
"
what should i do
thanks

Contact your ANSYS Application Engineer or post here for someone to troubleshoot.

Have fun

it gives the error for all programms

hi
this TEE have no problem in simulation i cant understand your problem

thanks
i reinstalled the HFSS and the problem has been solved.