getting some error in keil while building

Note that the Keil LPT-port Security Key ("dongle") does not necessarily play nicely with other devices also connected on the same port.

:-(

So, if you are using a download adaptor (or anything else) on the same parallel port as your Keil "dongle", that may cause issues...

Note that the Keil LPT-port Security Key ("dongle") does not necessarily play nicely with other devices also connected on the same port.

:-(

So, if you are using a download adaptor (or anything else) on the same parallel port as your Keil "dongle", that may cause issues...

thanks andy , i'll keep in mind . thanks once again.

have you worked with topview simulator?

No.

Ok , Thanks for your reply's.