I have Keil 7.0 Full version and Proteus 5.2
I download the Proteus VSM and Keil Development Tools PDF
I did the steps in this article but
when i choose "Remote Debugger Monitor" from the Debug menu under ISIS
a error window appears "VDM server failed to open socket for listening"
simply patch licence dll too give open socket {it could be the kiel patch } check you also have loged on as a user with a password in me {i used tweek me too auto add the pass } also this is more secure
there are lots of tweeks for me too add like internet explorer six and direct x 9 also many bios tweeks too add and flash
so isnt the app or patch thats wrong {perhaps licence dll isnt right and fully compatable with keil
so if this is the case restore the original
but it dosnt report isis has an error just you have a soccket error {cannot find an open socket }
if you have usb controller switched off turn it on this will sufice
you may need some more components in your machine
like a network card too use a network protocol so add one