Is the PowerC LI snapin loaded ?
You could do that through one of the profile files.
You could do a simple test from a CMD window.
Launch this and check if you get any results
C:\WINDOWS\system32\windowspowershell\v1.0\powershell.exe -PSConsoleFile "C:\Program Files\VMware\Infrastructure\VIToolkitForWindows\vim.psc1" -NoExit -Command "Get-ViToolkitVersion"
And I suspect the execution policy is set up correctly in the client.
Perhaps check with
C:\WINDOWS\system32\windowspowershell\v1.0\powershell.exe -PSConsoleFile "C:\Program Files\VMware\Infrastructure\VIToolkitForWindows\vim.psc1" -NoExit -Command "Get-ExecutionPolicy"