Calling Powershell scripts (.ps1) using Batch (.bat) files. As you can tell, I have SomeScript.ps1 in the same directory as .bat file I launch.
"C:\WINDOWS\system32\windowspowershell\v1.0\powershell.exe" -File "%~dp0SomeScript.ps1"
… and when I goolged, there were some other solutions as well for this… This way works for me so far.