Installing issues

[Guest solid_fox3353]

Im running xp and have recently installed and uninstalled a few games and am

currently having a lot of difficulty installing anything further if i double

click on the .exe file the system does not respond.

 

i thought restoring things using my xp cd thing would fix the problem but

after the computer restarted it said it was missing file "ag3n1d7n.sys" from

file "c:\$WIN_NT$.~BT\ag3n1d7n.sys" and cancels the setup

 

any help with this problem would be greatly appreciated