run.dll or hall.dll-all this dll error are related to low resources to ur comp or else startup programs in the computer are not responding.hence u need to do one step ie-start-run-msconfig.u will get system conguration utility box-click on startup tab.than click on disable all and than click on apply and close.it will ask u to restart the computer.click on restart.than when it restarts u u will get a mesage which says-u have used an system configuration utility.u need to click on dont show this message again and click ok.this will definately resolve ur issue .it will also make ur comp to boot faster than b4 since all ur startup programs are disable.its not only regarding dll errors.u can also try this 4 any kind of error message which u get.