After successful installation of ADOxx using the default instance of MS SQL Server Express (named MSSQLSERVER) I also wanted to install the UML implementation (from openmodels.at available at
http://www.openmodels.at/web/omi/resources).
The problem is that I cannot do it as the latter installation does not see the SQL server engine (I got asqladm-06 error: "SQL Server is stopped or could not be started"). I guess it corresponds to the situation when I have the default SQL server instance already running when installing ADOxx or the derived product.
Previously I installed ADONIS Community edition (
http://www.adonis-community.com) and I am able to use it after ADOxx installation as it uses another SQL Server instance (named SQLEXPRESS), so actually I have two instances running at the same time, but the ADOxx for UML installation does not see any of them.