After installing the C51 Developers kit(DK51 V5.50 for windows) I can't get the compiler to run. I have windows NT 4. When I type C51 or c51.exe in the bin directory it pauses for less than a second then the command prompt comes back and nothing else happens. I am using an installation where a serial number is required at install time, after which no licencing files are required. Can anyone help me? Regards, Alan
C51 V5.50 should work just fine under Windows NT4 SP4 or later. C51 V5.50 was a DOS program with a DOS extender. So, make sure that your DOS box doesn't disable extended/expanded memory. We're currently shipping C51 V7.04 and that is a Windows product. You may want to consider upgrading--V5.50 is pretty old. Jon
I got to the bottom of the problem. My path environmental variable was extremely long. After shortening it to a more sensible length, the compiler ran normally. The group I have joined are sticking with V5.50 – they tell me the code doesn't compile in the same way with later versions and some of our customers also use this version. Thanks, Alan