Hi,
Thanks! Actually I was more aiming at what format you used to "place" a variable in the actual HTML and how you detect that when the program parses the HTML page to replace the "dynamic variable identifier" with the actual variable value. Does that make sense?

Anyway, regarding the DHCP code:
The lease time received from the DHCP server is a 32bit variable stored in the DHCP_LeaseTime array (4 bytes). The IP-adress lease must to be renewed before the lease time expires. What I do is simply divide the actual lease time in half, when that time (half of the actual lease time) expires the code triggers a renew of the lease.

The code snippet you ask about performs that divide by 2 operation by shifting the value one step to the right. It uses the Buffer array as a temporary storage for moving Bit1 in LeaseTime to Bit0 in Buffer and so on. Finally it copies the shifted result back to DHCP_LeaseTime.

The reason for doing it this way is that I wanted to avoid using LONGs (32bit variables) in PBP because it adds quite a bit of overhead. Using a LONG for the lease time and doing LeaseTime=LeaseTime/2 or LeaseTime=LeaseTime >> 1 would result in the same thing.

Looking at the code now I could probably do something like this instead of using Buffer as a temporary storage
Code:
For DHCP_i = 0 To 30
  DHCP_LeaseTime.0[DHCP_i] = DHCP_LeaseTime.0[DHCP_i + 1]
Next
DHCP_LeaseTime.0[31] = 0
Anyway, I hope that explains the what and why.

/Henrik.