Manufacturers are showing reluctance over supporting Microsoft Corp’s At Work architecture, according to a report in US PC Week. While the first products are beginning to appear, but many vendors are said to be concerned about high royalty fees, competition from Novell Inc and the lack of an At Work network implementation. Novell is working on a competing offering, Embedded Systems Technology, which is due for release in August and, just like At Work, is designed to enable OEM customers to embed operating systems into peripherals and other devices. And, according to PC Week, Microsoft’s royalty fees of around $100 per unit sold are also dissuading manufacturers from committing to the standard.