When I try to compile a file using the TRX51TINY sample program , and it always displays the message below: ***FATAL ERROR L210: I/O error on input file Exception 0021H: Path or file not found c:\keil\c51\rtx51tiny.lib According to APT notes I found at Keil site, the linker looks for the file "rtx51tiny.lib", however, I did the search for that particular file on my computer, and I have not been able to find such file. Could anybody in this forum advise me how/where I can obtain the file. Or maybe there is a way I can get around this ??? Thanks in advance, JIMMY