AddModulePath.ps1

#Save the current value in the $p variable.
$ModulePath = [Environment]::GetEnvironmentVariable("PSModulePath")

#Add the new path to the $p variable. Begin with a semi-colon separator.
$ModulePath += ";C:\GIT_WorkingDir\PowerShellScripts\"

#Add the paths in $p to the PSModulePath value.
[Environment]::SetEnvironmentVariable("PSModulePath",$ModulePath)