Help in IIS -.-

Please, they help me, I am with a great problem in my IIS
As you they see below in the IMG, the service is stopped
IMG: http://images.cjb.net/6778b.jpg

and the ISAPI this as unknown, I find that he does not recognize the DLL

IMG: http://images.cjb.net/183ff.jpg

somebody please, can take off mine doubts? ;(

Re install IIS 6. Try that. Backup everything first.