I tried last night to install Windows XP 32-Bit Client v6.3.21 onto a Windows XP 64-Bit OS that already had the Windows XP 64-Bit Client v6.3.21 Client already installed on to it. It wouldn't install no matter what I did though, it would appear to be installing but where the files should have been there was nothing there.

That said I need to include that the Boinc Directory's are not where the Default Directory's normally go. I always put them on another Hard Drive & in it's own Partition. So I don't know if thats throwing off the installer or not, it doesn't seem to keep me from Upgrading to a new version of the client though if I use a 64-Bit client.

Hi Steve,

What happens when you first uninstall the other version? Can you then install the 32bit version into the same directories? Perhaps it's a matter of measly 32bit executables not being able to overwrite superior 64bit executables. ;-)

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Hey Jord, I got it figured out finally, what I had to do was:

1-First use the 64-Bit Client v6.3.21 Installer to Un-install the installed version of Client v6.3.21
2-Then Install a 32-Bit Client Version of v5.10.45
3-Then Install a 32-Bit Client Version of v6.3.21

There may be other ways of doing it but thats what worked for me, I was able to install the 32-Bit Version Clients files where I wanted them to be doing it that way too ... :)

What happens when you first uninstall the other version? Can you then install the 32bit version into the same directories?

Thats how I was trying to do it but it wasn't working, it would uninstall the 64-bit version but wouldn't install the 32-bit version ...