Had the same problem.
One of my clients had an old installation of proxy-client in his computer.
I removed it, and the problem seems to have disapeared.
Or, edit mspclnt.ini on the client, and change
Don Papa skrev i meddelandet ...
>I have a customer that has called with a similar problem to yours. We are
>running an NT SBS Server with Exchange. A client using a Windows95 Work
>Station has reported that everytime he clicks on TOOLS or tries to exit
>exchange his system hangs up indefinitely. Pressing ctrl-alt-Del brings up
>the task manager and shows MASISP32.EXE not responding. He clicks end task
>and the system resumes normally and closes the mail client. He also can not
>retreive email. Also he is the only client out of 8 that is having this
>problem. Hope someone has a solution to this one!
>>10 seconds after starting MS Exchange in Windows NT4.0 SP3 the system
>>becomes very slow. In the Task Manager the process mapisp32.exe claims
>>nearly 99% of CPU-time. So I have to terminate the mapisp32.exe process to
>>be able to work, but I can't receive mails.
>>What can I do?