Cannot connect to Exchange over RAS

Put the name of your Exchange server and its IP address in both HOSTS and LMHOSTS, both located in your \windows directory. If these files do not exist, there will be a HOSTS.SAM and LMHOSTS.SAM there. These are sample files, full of comments which describe the format of the entries. Put your entries at the bottom, and save the files as HOSTS and LMHOSTS respectively.

The computername you want to list in these files is the NETBIOS computer name of your exchange server.

Depending on how your exchange server is set up, you may need to enable the netbeui protocol on your Win98 machine also, but if you are browsing your domain, I suspect this has been done.

Good luck.

The HKEY_LOCAL_MACHINE\System\CurrentControlSet\control\LSA\LMCompatibilityLevel may be set to 2
Windows NT supports Windows NT challenage/response and Lan Manager(LM)challenge/response
The valid data values are:
0-Send LM and Windows authenication 9default)
1-Send Windows NT authenication and LM authenication only if the server requests it
2-Never send LM authenication
The defaul;t value has to be set to 0

In answer to the hosts and lmhosts answer above, do NOT put your entries at the bottom. Windows parses these files from start to finish so has to read through all the example rubbish.

Make new text files and remove the txt extension. Copy the format of the sample files, but only include the entries which will be used.