After resolving my other problem, a new problem has risen

my javascript has stopped working

i think jscript.dll has been corrupted due to malware

but i cant get on the internet to get a new .dll file due to my javscripting not working

all scripting is enabled in the internet options
ands i have downloaded the newest java even though its a totally different thing( or so i was told)
but im not sure what else to try?

i cant get on sites such as you tube or game sites

Any Ideas?