C:\chas_sandbox>"My Echo (v1).pl"
hello, world

C:\chas_sandbox>cmd /c "My Echo (v1).pl"
'My' is not recognized as an internal or external command,
operable program or batch file.

C:\chas_sandbox>cmd /c " "My Echo (v1).pl""
hello, world

C:\chas_sandbox>cmd /c ""My Echo (v1).pl""
hello, world

C:\chas_sandbox>perl -e "print STDERR ` """My Echo (v1).pl"""`;"
hello, world

C:\chas_sandbox>perl -e "print STDERR `""" """My Echo (v1).pl""""""`;"
'" "My' is not recognized as an internal or external command,
operable program or batch file.

C:\chas_sandbox>