CTX: The Citrix Management Console failed to remove the server. Error Code: 80000007

When you try to remove a dead citrix server from CMC, you receive this error:

"The Citrix Management Console failed to remove the server. Error Code: 80000007"

Solution:

dscheck /full servers /deletemf CTXSRV01

where CTXSRV01 is name of the Citrix server.

DSCHECK is a very powerfull (and dangerous) tool, backup your datastore before use it.