The following bug has been logged online: Bug reference: 3797 Logged by: thomas haegi Email address: me@alternize.com PostgreSQL version: 8.3b3/b4 Operating system: Windows 2003 Description: b4 msi installer fails when b3 is still installed Details: probably due to the fact that the installer's version is tagged as 8.3 and not 8.3bx, it won't allow you to install pgsql b3 and b4 side-by-side: "Another version of this product is already installed. Installation of this version cannot continue. To configure or remove the exisitng version of this product, use Add/remove Programms on the Control Panel." it is hower possible to have 8.2 and install 8.2b4 side-by-side. it would make beta-tests a bit more convinient (even more :)) if one wouldn't have to install pgsql manually in a win32 environment when two beta versions should run concurrently. as a sidenote, the current win32 builds on postgresql.org do not have the upgrade.bat file included although the readme.txt says so. regards, thomas ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend