NSIS import PowerShell script with parameters

Question

I have written a sample program that will write Hello World and created NSIS file and executed which works fine for me

My .nsi script goes as follows

!include "x64.nsh"

Name "nsExec Test"
OutFile "nsExecTest.exe"
#ShowInstDetails show

Section "Output to variable"
nsExec::ExecToStack 'powershell.exe "& "Import-Module C:\PowerShell\Hello.ps1"'
Pop $0
Pop $1
DetailPrint '"ImportModules" printed: $1'
SectionEnd

Which is printing the write host as per written when I executed it. My code in .ps1 file

 

# Filename: Hello.psm1
Write-Host
Write-Host 'Hello World!'
Write-Host "Good-bye World! `n"
# end of script

Now I am trying to achieve the same with parameters, can some one help me

 

# Filename: TestParameter.ps1
function TestParam([string] $TestParam)
{
    Write-Host
    Write-Host '$TestParam'
    Write-Host "Good-bye $TestParam! `n"
}
# end of script