What does not
What was not tested
Upgrading 5.8.16 --> 7.4.36 directly doesn't report the upgrade in the log (stdoutdae.txt), though the installer says it is upgrading. The directory structures change in Windows between these versions so that might explain it. Tested running X over SSH. No overrides. BOINC 7.0.64 & 7.4.36. SETI@home v7 7.00 windows_intelx86
|Ubuntu 14.10 "Utopic" amd64 (+ variants like Kubuntu)
|Jan 02 2015
|Ubuntu 12.04 "Precise" amd64 (+ variants like Kubuntu)
|Dec 27 2013
|Other apps affected
|Add support for setting processor priority (niceness)
|Printing from command line not implemented in Wordpad
|Microsoft SQL Server Management Studio Express 2005: Connection window is too narrow
|BOINC service install fails (user accounts created by NetUserAdd need to be persistent across sessions)
|BOINC uninstaller claims to be upgrading
BOINC is available for a wide array of platforms, and a lot of platforms are supported by the projects. You are probably better off asking a project to support your platform than using Wine to translate Windows calls.
It should be possible to use a native BOINC and run a Windows executable with Wine if absolutely necessary.
Test results for BOINC are still welcome as they help developers with Wine.