Some time ago, a colleague told me he was having trouble generating a batch file using PowerShell. The batch file as generated, but when he tried to run the batch file, it resulted in an error containing:
þ is not recognized as an internal or external command
In the batch file, the character þ was nowhere to be found.
The code he used to generate the batch file was as follows:
$Batscript = ‘D:\batscript.cmd’
IF(Test-Path -path $Batscript)
{
Remove-Item $Batscript
}
$SSIDImport = Get-Content ‘D:\SSID.txt’
Foreach($SSID in $SSIDImport)
{
“nsrmm.exe -d -S $SSID -y $SSID“ | Out-File -filepath $Batscript -Force -Append
}
‘nsrim.exe -X’ | Out-File -FilePath $Batscript –Append
After Googling a bit I stumbled across a similar issue: http://powershell.org/wp/forums/topic/strange-character-error-when-running-native-cmdline-app/
Thanks to Dave Wyatt I learned that the default encoding for Out-Filepath is Unicode which many command line tools cannot handle. With this knowledge, the solution was to simply specify the encoding for Out-File as shown below.
$Batscript = ‘D:\batscript.cmd’
IF(Test-Path -path $Batscript)
{
Remove-Item $Batscript
}
$SSIDImport = Get-Content ‘D:\SSID.txt’
Foreach($SSID in $SSIDImport)
{
“nsrmm.exe -d -S $SSID -y $SSID“ | Out-File -filepath $Batscript -Force -Append -Encoding ascii
}
‘nsrim.exe -X’ | Out-File -FilePath $Batscript –Append -encoding ascii
After this change, everything worked perfectly.
blog.bjornhouben.com 
Andy
May 15, 2017 at 19:19
Over a year later, and this was a huge help. Thanks.
LikeLike