The k700.proxyserver.dll file belongs to MailStation Assistant from Pitney Bowes, Inc. This file is part of the software that updates your MailStation 2 using your computer. K700 is the product code for the MailStation 2, and a proxy server is a way to connect to the internet.
The MailStation 2 is a postage meter that measures and prints postage for you, and can be updated through your computer or a phone line. If you get an error with this dynamic link library, your computer may be unable to update postage amounts for your MailStation 2.
When you get a dll error on your system, the first culprit to suspect is your Windows registry. The registry is a database of information on all the installed programs on your computer. It can sometimes get out-of-date and need a little cleaning.
Run ZookaWare PC Cleaner to clean your registry automatically. ZookaWare PC Cleaner will fix every registry error on your machine–guaranteed–and you can get back to printing postage.