I am currently dealing with a Backup Exec saga. The goal is to upgrade from backup exec 12.0 (end of life yesterday) to backup exec 2014. They threw a snag in there, you have to upgrade to 12.5, then 2010, then to 2014. The machine I am working on is running Windows Server 2003 32bit. SQL 2005 is also installed. This machine ran backup exec 11d for years with no prob, then ran 12.0 just fine. The issue is when I try to install 12.5 I receive the above error, V-225-53, which is related to SQL from what I can gather. The installation log seems to be worthless also but does say that the error V-225-53 is 1332 and 1603. This happens when I run the install as Admin even though I am also logged in as domain admin.
I saw somewhere that if the app data folder didnt get copied correctly in the registry it would cause this error. Verified that mine is good. I also saw someone suggest to create a named instance in SQL and retry the install..... did that, no luck.