Powershell character number limitation in New-ScheduledTaskAction -Execute <String> - powershell

Question

I'm currently having issues using the New-ScheduledTaskAction -Execute String command.
The issue occurs when the passed String exceeds 260 characters. I tested this using the following code:
Code that works:
# create app object
$real_time_task_action = New-ScheduledTaskAction -Execute "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
$current_date = Get-Date
# create base trigger object
$real_time_base_trigger = New-ScheduledTaskTrigger `
-Once `
-At $current_date `
-RepetitionInterval (New-TimeSpan -Minutes 1)
# create tasks
$real_time_base_task = New-ScheduledTask -Action $real_time_task_action -Trigger $real_time_base_trigger
# register tasks
Register-ScheduledTask PerfAlgRealTimeBase -InputObject $real_time_base_task
Code that errors out:
# create app object
$real_time_task_action = New-ScheduledTaskAction -Execute "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
$current_date = Get-Date
# create base trigger object
$real_time_base_trigger = New-ScheduledTaskTrigger `
-Once `
-At $current_date `
-RepetitionInterval (New-TimeSpan -Minutes 1)
# create tasks
$real_time_base_task = New-ScheduledTask -Action $real_time_task_action -Trigger $real_time_base_trigger
# register tasks
Register-ScheduledTask PerfAlgRealTimeBase -InputObject $real_time_base_task
This is the actual error (which I feel is somewhat generic):
Register-ScheduledTask : The task XML contains a value which is incorrectly formatted or out of range.
My question then is: is there a way to go around this character limitation? Ultimately I would like to execute Task actions with Strings with more than 260 characters.

Answer 1

Currently, paths are limited to 260 characters in Windows per default. To work around this, you can either:
Prefix every path with \\?\, e. g. \\?\D:\very long path, to make it an extended-length path (source). Or
Enable long paths in Windows 10 (since v1607) by changing the registry (source):
Set-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\FileSystem' -Name 'LongPathsEnabled' -Value 1
A reboot is required to make this change effective for all processes.