How to restore Keil License version

I have a KEIL license version. Unfortunately I deleted KEIL folder. How to restore the KEIL license and all? Let me know as soon as possible.
Serial and timer seem conflict

void enable_timer(void) { TH0=0x01; TL0=0x01; TMOD = (TMOD & 0xF0) | 0x01; ET0 = 1; TR0 = 1; EA = 1; } void serial_init(void) { PCON |= 0x80; SCON = 0x52; TMOD |= 0x20; TH1 = 0xF3;...
RESPECIFIED OR CONFLICTING CONTROL

Hi, I want to add a delay function to my project. For the reasons specifed in some of the posts in this forum I want to write the delay function in assembly though I am coding my project in C. Initially...
FFS - Reentrant or not? Conflicting advice.

Are the Flash File System functions reentrant or not? This link says that they are: http://www.keil.com/rl-arm/rl-flash.asp - "Reentrant and thread-safe operation" The uVision help says that they...
RL-TCPNet: IP Conflict

Hi, Is there a way of checking for an IP conflict using the RL-TCPNet? I couldn't find or realise one using RL-TCPNet. Thank you for the attention. Best regards, Ivan Amancio...