I have installed MSDE but I want to replace it with SQL Server - will this affect Helm?
If you installed MSDE using our installer then Helm will be using its own instance that shouldn't be affected by installing SQL server. If you have installed MSDE with no instance then MS SQL server should install over it and inherit the databases, user accounts etc that MSDE had.
Even though this means that the database won't be affected we strongly recommend that you back up the database first just in case there are any problems.
If you want to move the MSDE database to the SQL server installation you can detach and reattach the database. See this article for details on how to do this: