If you wanted to run it from your netlogon, it would be something like this.

 Code:
If Exist("%WINDIR%\BGInfo.bmp")
   Del "%WINDIR%\BGInfo.bmp"
Endif

Shell "\\server\netlogon\bginfo\Bginfo.exe /timer:0 /silent /NOLICPROMPT \\server\NetLogon\bginfo\hostname.bgi"