will 4.x and 5.x server will run in same machine .
Running the vCenter server of both the version is not possible.. I assume ur question is about running vSphere Client and if yes u can run the different vSphere Client on the same system
will 4.x and 5.x server will run in same machine .
Running the vCenter server of both the version is not possible.. I assume ur question is about running vSphere Client and if yes u can run the different vSphere Client on the same system