Winxp config file for Backgrounds, c++.

[exally]

Hey guys,

i am looking for some thing that will give my desktop a new background image everytime i turn on the computer, this requires me having access to the file where the directory of the backgorund image is sotred, if it were windows 98 or windows 95 i would have no trouble, but winxp pisses me off with all the users and so forth so if anyone knows the directory of the file that it is stored in GREAT....

as for the coding i was thinking

string backgrounds[50];
.
. //add backgorunds
.

fstream m_File("<file name here>");
string temp;
so forth so forth..... some random function,....