Vxworks doesn't apear in workbench installation

[moha]

hi every one
recently i started to work with windriver products so i installed windriver workbench Version: 3.3.1 after the instalation i wanted to create a windriver vxworks project but the surprise is that i don't have it in my drop-down window in project creation wizard i have only host os and windriver standalone(no operating system) platform 1.0 even when i switch to advanced device development perspective i can't open VxWorks Downloadable Kernel
Module Sample Project a message appears telling me "the capability vxworks 6.x development is invalid because the undelying platform is not available this leads to unexpected results in windriver. please check the instalation " the same message appears with vxworks downloadable application simple project , i tried to uninstall and install windriver several times but no thing changed ..i hope some one can help me
best regards