I need some help about ltp port. Here's my situation. There is a robot (home made), it connects to computer through LTP port and i need to wright program to control it. I've got a progie for that. There are 2 exe files. One communicate through ltp and other uses the first one to control robot. But this doesn't works on winXP. I somewhere read that all newer windows doesn't allows programs directly access ports. Seems that ltp is obsolete thing and i can't find nothing useful on net. I found that port handle could be obtained using CreateFile API function but i can't find usable file name. Tried LTP, LTP0, LTP1 and some others but none of these works. Tried COM1 and it works fine. Maybe there is another way for LTP. Actually i have no idea how those ports works and even if i get port handle what should i do next? Does ReadFile/WriteFile are suitable in my case or there are other way for that?
Thanx in advance.