Hi experts, I really searched before posting but could not find anything which was relevant to my case. Question: I wanna change the static IP address of the Local Computer as soon as a particular user logs on to it. I have tried changing the registry values from: [HKEY_LOCAL_MACHINE\SYSTEM\ControlSet004\Services\Tcpip\Parameters\Interfaces\{7E94B417-55DF-496B-A5DC-871A12C7EE5F}] "IPAddress"=hex {{value}} and from: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\{7E94B417-55DF-496B-A5DC-871A12C7EE5F}\Parameters\Tcpip] "IPAddress"=hex {{value}} The address gets changed and I can see it gets changed in the Network Properties , however, its not implemented. Like when we try to resolve our Hostname its results in our old static IP address. I tried the same registry modifications in ""Current Control Set" but it dosent get implemented. So, I tried to do ipconfig/Release IpConfig/Renew ,, but because its a static IP, it dosent make a difference. So, finally, I tried tolook what services were running in the backgroud which could re initialize the new IP which has been modified in the registry, but still in vain. Tried restarting each and every service from the Administrative Tools> Services but the new IP never gets implemented.... So, i am stuck now, and I hope to get something useful from u ppl. Hope u got my question.... I wanna make a script or a batch file which is initialized when a particular user logs on to the computer which changes the static IP address to something different without any user intervention required.(or a small, may be). And I can put the reverse scripts in all other users so that when anybosy else logs on he is on the original IP ..... Well, will u be able to reply at my email address j a g m e e t _ h a n s p a l @ s o f t h o m e . n e t or atleaset gimme an intimation that someone has posted a reply?

When your computer is switched on, it announces itself on the network using its name, and if you have a static address, that as well. With W2K you can go into network properties and change the IP address while the machine is running. Are you using DNS? If you are, you will need to delete the entry for the machine name each time you change the address. It would be interesting and helpfull to know why you need to change the IP for each user. Hope this is of some use ChrisE

What you need is called DHCP.

Why don't you change the registry settings for all users when they log on it will acuire a special IP from registry settings and when you want to assign a special IP for each user you have to get GUID no for that user It is trickey to get GUID no for user. Edit the Registry under HKEY_USERS/GUID OF SPECIFIC USER to give a specific IP for specific User. .ed.

Hi chrisE, Rambler, Majid, Thankx for ur time and support. Regarding the logical reason, there is one, definitely. I am accessing a Proxy server on my server which gives me better speed to the internet. Now, I dont want my activity to be logged!!! its that simple. And there is no rule on the static address. So, i have to manually change the settings on the internet explorer to use a proxy server instead of using http access from the main server. So, i made a new account, which already has the internet explorer settings in it... Now, what I used to do was, before logging onto the new account, I canged my IP address and ComputerName "Manually" so that the activity is not logged with my IP address... I just used to give any anonymous IP, ofcourse in the 172.16.*.* range. So, i just wanted to know if this could be made automatic. Like when i log off from a normal user and logon that particular username, the IP gets changed and if possible, the Computer name too !!! Or, just tell me what programs get initiated when we change the IP address from Network properties. I can then make a script that changes the IP in the registry and then starts those processes for the changes to take effect. Hope u got it, and wont mind answering my simple query! Chris: There is no DNS, if we could just chnage the local address it would suffice. And thankx for ur time. Rambler: I dont think I would need DHCP. Thankx for making me think about that ;-) Majid: U got me, but I could follow ur steps. Firstly, I have only three GUIDs under Hkey_Users i.e. (.default, {large no.s}, {large no.s} ). But the last one is empty... I wont be changing .default.... and I couldnt find nay IP in any GUIDs. !! :-( There has to be something ur way.... Could you please enlighten me upon this? One more thing: Can there be some software called anonymizer which can make others think that ur computer IP is something different? Like anonymizer.com Sorry for the long post. but i post rarely