Why are my domain and username being prepended to stored procedures I create?
If you didn't explicitly set it, then objects created by you will be created under the default schema for your user. In SSMS, look in:
Database -> Security -> Users -> &lt;you&gt; -> Properties -> General -> Default schema
ALTER SCHEMA dbo TRANSFER [COMPANYDOMAIN\MYUSERNAME].ThisIsAStoredProcedure;
Change the setting you looked at in 1.


Of course, you may not have permission to do 2 or 3, in which case it's a question for the person that does have permission.