WSUS is

I have WSUS server in my office for windows patch management. My Domain controller is not getting displayed in the WSUS server.

DC - ismartblr1 OS : win2k3 domain : llspl
WSUS : ismartblr-wsus OS - win2k3

Wsus server is joined in llspl domain. I have already configured GPO, all my other workstation in this domain is displayed in WSUS.

Is there any way i Can my DC into WSUS manually or automatically. Kindly help.

Did you install IIS before, or after, you promoted the machine to a DC?

My guess is that you installed IIS /before/ promoting the machine, and that's a no-no.

Uninstall WSUS, Uninstall IIS, Reinstall IIS, Reinstall WSUS. Voila! Problem will be fixed.

IIS is installed properly, My winxp client is updating properly. My issue here is my DC ( win2k3) is not listed in wsus server computer list. How do i add that?