Windows server installation problem

[Apophoret]

HI All,

Trying to install the windows server and everything was going ok till got this. Any ideas?

Fetching 'eqemu_server.pl'...
The term 'Invoke-RestMethod' is not recognized as the name of a cmdlet, functio
n, script file, or operable program. Check the spelling of the name, or if a pa
th was included, verify that the path is correct and try again.
At line:1 char:60
+ $ProgressPreference = 'SilentlyContinue'; Invoke-RestMethod <<<< -ContentTyp
e "application/octet-stream" -Uri https://raw.githubusercontent.com/EQEmu/Serve
r/master/utils/scripts/eqemu_server.pl -OutFile eqemu_server.pl
+ CategoryInfo : ObjectNotFound: (Invoke-RestMethod:String) [], C
ommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException