How to run a Scheduled Task as NetworkService in Windows Server 2003? [duplicate]

I asked this same question. Fortunately RyanRies was able to provide a correct answer.

In Windows Server 2003 you cannot run a scheduled task as NT AUTHORITY\NetworkService (aka the Network Service account). That capability only was added with Task Scheduler 2.0, which only exists in Windows Vista/Windows Server 2008.

Bonus Chatter

• LocalService Account is a built-in account with limited privileges on the local computer, and accesses the network as anonymous. You should use this account to run your scheduled tasks
• NetworkService Account is a built-in account with limited privileges on the local computer, and accesses the network as the machine (e.g. VADER$). You can use this account to run your scheduled tasks if you need authenticated network access
• LocalSystem Account is a built-in account with extensive privileges on the local computer. You should never use this account to run scheduled tasks

You can't. The functionality was introduced in Task Scheduler 2.0, which means Vista/2008+.

From the documentation for Schtasks.exe:

/RU username

A value that specifies the user context under which the task runs. For the system account, valid values are "", "NT AUTHORITY\SYSTEM", or "SYSTEM". For Task Scheduler 2.0 tasks, "NT AUTHORITY\LOCALSERVICE", and "NT AUTHORITY\NETWORKSERVICE" are also valid values.

http://msdn.microsoft.com/en-us/library/windows/desktop/bb736357(v=vs.85).aspx: