What is TSWEB and what does it do?
TSWEB is a component of the Microsoft Terminal Services Advanced Client that is installed on an IIS server. It allows an IIS server to act as a bridge between any machine that has terminal services available on it, and any web browser that supports Active X.
Through TSWEB, it is possible to use a wide variety of non-web enabled applications remotely through a web browser.
For more information, see http://www.microsoft.com and search for TSWEB.