Hur ändrar man på THREAD_ALL_ACCESS "vektorn" för att programmet ska kunna köra i xp?

THREAD_ALL_ACCESS:

All possible access rights for a thread object.
Windows Server 2003 and Windows XP/2000:  
The value of the THREAD_ALL_ACCESS flag increased 
on Windows Server 2008 and Windows Vista. If an application 
compiled for Windows Server 2008 and Windows Vista is run on 
Windows Server 2003 or Windows XP/2000, the THREAD_ALL_ACCESS 
flag contains access bits that are not supported and the function 
specifying this flag fails with ERROR_ACCESS_DENIED. To avoid this 
problem, specify the minimum set of access rights required for 
the operation. If THREAD_ALL_ACCESS must be used, set _WIN32_WINNT 
to the minimum operating system targeted by your application 
(for example, #define _WIN32_WINNT _WIN32_WINNT_WINXP). 
For more information, see Using the Windows Headers.

My.Computer.FileSystem.WriteAllText("Test1.txt", "Detta är ett test", False)

Private WithEvents backgroundWorker1 As System.ComponentModel.BackgroundWorker

Private Sub backgroundWorker1_DoWork() Handles backgroundWorker1.DoWork
        My.Computer.FileSystem.WriteAllText("Test2.txt", "Detta är ett test", False)
end sub


Public sub Start_thread
        backgroundWorker1 = New System.ComponentModel.BackgroundWorker
        backgroundWorker1.RunWorkerAsync()
end sub