I'm not sure if I've violated some rule or the installation is just not working the way I'm thinking it should work. This is a Windows XP Professional Service Pack 2 install. Yes, I know it sucks but until I get my app rewritten in Qt it will have to do and even after that point I will still need this to work. First I install 8.3.1 using this command line: MSI (c) (F0:1C) [22:53:29:468]: Command Line: INTERNALLAUNCH=1 DOSERVICE=1 DOINITDB=1 SERVICEDOMAIN=CLAUDIAS-IGOR SERVICEACCOUNT=pg$horseshow SERVICEPASSWORD=********** CREATESERVICEUSER=1 SERVICENAME=pg$HORSESHOWTIME_8.3 SUPERUSER=pg$SuperUser SUPERPASSWORD=********** PERMITREMOTE=1 ADDLOCAL=server,psql,pgadmin CURRENTDIRECTORY=C:\DOCUME~1\STEFAN~1\LOCALS~1\Temp\is-PSU3E.tmp CLIENTUILEVEL=1 CLIENTPROCESSID=3824 The install works great and my service is named pg$HORSESHOWTIME_8.3, the super user is pg$SuperUser and the superpassword is functional allowing me to login via pgAdmin3. Next I do (after a reboot because the service name, service user, super user, and super password are not known until after the reboot) an install of version 8.3.3 using the following command line: MSI (c) (D8:9C) [23:03:06:843]: Command Line: REINSTALLMODE=vamus REINSTALL=ALL CURRENTDIRECTORY=C:\DOCUME~1\STEFAN~1\LOCALS~1\Temp\is-NDO44.tmp CLIENTUILEVEL=1 CLIENTPROCESSID=3544 The second install blows out with the message that Service 'PostgreSQL Database Server 8.3' (pgsql-8.3) could not be installed. Verify that you have sufficient privileges to install system services. Clearly it's trying to install the version upgrade using the default service name rather than the service name I've specified and this same error seems to perpetuate itself through all the possible install parameters that are not default parameters. Is there a piece I've missed or is this incorrect installation behavior? Thank you for any light that you can shed on my problem. --- Stefan Berglund