Powershell - passing parameters to script executed via piping [duplicate] - powershell

Question

I am running powershell script over ssh as ssh user#host "powershell -Comand - < script.ps1. It works as expected as long as I start passing arguments.
When I put it as powershell -Command - my args it fails (as documented)
'-' was specified with the -Command parameter; no other arguments to -Command are permitted.
While the other way around powershell my args -Command - it fails with:
The term 'my' is not recognized as the name of a cmdlet, function, script file,
or operable program. Check the spelling of the name, or if a path was included
, verify that the path is correct and try again.
At line:1 char:3
+ my <<<< args -Command -
+ CategoryInfo : ObjectNotFound: (my:String) [], CommandNotFoundE
xception
+ FullyQualifiedErrorId : CommandNotFoundException
I intend to put in arbitrary list of parameter without any parsing.
Edit:
As I investigate further, it seems I am doing something wrong even when the command is specified explicitly:
(local bash) $ echo '\n' | ssh -i master-key Admin#10.8.55.78 '$SYSTEMROOT/System32/WindowsPowerShell/v1.0/powershell' -Command 'Write-Host \$\(\$args.Count\)' "my" "args"
0 my args
It seems that passes no arguments but they are printed on console for some reason. Avoiding the ssh does not seems to change anything:
(cygwin) $ $SYSTEMROOT/System32/WindowsPowerShell/v1.0/powershell -Command 'Write-Host $($args.Count)' "my" "args"
0 my args

Answer 1

You can't do that directly, but I think this can be done, if you wrap your script in scriptblock and pass arguments to it:
echo "& { $(cat script.ps1) } 'my' 'args'" | ssh user#host "powershell -Command"
Since -Command parameter can't handle multiline strings, there is a way to pass it in (though not via standard input) using Base64 encoded value of -EncodedCommand parameter, but it's ugly:
ssh user#host "powershell -encodedcommand $((echo "& {"; cat script.ps1 ; echo "} 'my' 'args'") | iconv -f ascii -t utf-16le | base64 -w0 ; echo -e "\n")

Answer 2

This one works as expected:
script=$(cat <<-'SCRIPT'
{
$a=$Args[0];
$b=$Args[1];
# Do not enclose $script into "" to avoid this comment spread till the EOL
Write-Host "This is 'a': $a";
Write-Host "This is 'b': $b";
} # <- call as [[[ -c "& { $script } ... " ]]] if you ommit braces '{}' here
SCRIPT
)
a="THE VALUE OF THE \"a\""
b="B B B B"
powershell -nologo -executionpolicy bypass -c "& $script '$a' '$b'"
output:
> This is 'a': THE VALUE OF THE "a"
> This is 'b': B B B B