command to run Fn + [left arrow]

[harp]

I look to find some simple solution to execute Fn+left arrow once at winxp startup... It might be some simple specific command aplication, or batch script, or some C code (I have C compiler, but thats it)... can anyone help with idea or solution? On internet can find some sofisticated programs that can do such things and much more, but I not interested to load it to system for that.... ... ... If you interested in what is purpose... I have some bug or so on my laptop, and on every shutdown reset backlight to maximum, just flash one moment before go off... on next boot backlights is stuck to fully on, but only one pressed fn+larrow bring it back to previous setted value.

[SMDFlea]

What model is it, does it have dedicated function key software

[harp]

It is eMachine G725, and something is wierd with screen by design: on point of boot manager like grub the fn key work ok, and can be set brightness... depending on os can be either: stay at this setting, or go to max brightness. I managed to fix brightness in some linux config file, and fn key was start working in winxp after install graphics driver... but issue is that value is disrupt on shutdown... on linux it load config file while boot, and it is fixed, but on winxp on every poweron is max brightness any ask to hit fn+arrow. Here on forum I posted solution for linux. For winxp is half ok with driver... I dont see any slidebar to adjust brightness, just working with fn+arr key... It is not big deal just some iritant thing that reduce my confort...