Multiline comment in PowerShell
In PowerShell v2 and newer, use the following syntax for the multiline comments:
<# a b c #>
The multiline comment in PowerShell should work.
If not, try this...
# This is# a# multiline comment.
or
<#This does works for me.#>
If it doesn't work, try to check if you have the correct version of PowerShell.