Thanks for the info ,
but how to write it in DevC++ and slarty u are telling that TSRs are only possible in
DOS then what about lets take an example of a pop client , when we start that
it keeps on running and checks for new mails at the pop server and the moment
it finds some immediately it notifies .. that new mail has arrived , also how keyloggers
work than ?? those are also TSRs which keep on running and these keylogger
are not coded in TurboC++ but either in VC ++ or some other compiler.. which
runs on windows .. so i am looking for that type..

pls help me anybody..

thanks