The

boinc_installer.exe /v /a c:\temp
xcopy c:\temp\boinctemp\app\*.* e:\boincportable\app\boinc

actually modified the registry.

If you used Sandboxie that would not happen.

I didn't realize Sandboxie was critical to the process (keeping the registry clean), as you mentioned installing to a USB was an option, nor did I realize Sandboxie's wider usefulness. It will have much more use from me now that it's installed.

:) In fact I didn't know what will happen during the 'unpack' by /a (it was the first time I try it)
That's why I used Sandboxie (I have it for years)

I "mentioned installing to a USB" as a minimum precaution in case you don't want to get a new program (Sandboxie)
I see in 'DefaultBox' two directories with names WINDOWS and Windows
- this means the boinc_installer.exe /a (try to) write in directory named Windows
(I don't know if it is the real Windows directory or just another directory named 'Windows' - my real Windows directory is D:\WINDOWS\)


It was surprise for me that it "actually modified the registry" (I didn't expected this so didn't checked this at the time)

Since I still have the files in 'DefaultBox' I checked this now and it is really changed
(for info: the changed parts of the Registry are in ...\DefaultBox\ in file RegHive)


If I run RegEdit the normal way and 'Export...' "BOINC Setup" I get this:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Space Sciences Laboratory, U.C. Berkeley\BOINC Setup]
"INSTALLDIR"="H:\\BOINC\\"
"SETUPTYPE"="Single"
"LAUNCHPROGRAM"=""
"ENABLELAUNCHATLOGON"="0"
"ENABLESCREENSAVER"=""
"SERVICE_DOMAIN"=""
"SERVICE_USERNAME"=""
"SETUPSTATESTORED"="TRUE"
"MIGRATIONVERSION"=""
"MIGRATION"="TRUE"
"MIGRATIONDIR"="H:\\BOINC\\"
"RETURN_REBOOTREQUESTED"="0"
"REBOOTPROMPT"=""
"RETURN_VALIDATEINSTALL"="1"
"DATADIR"="H:\\BOINC-Data\\"
"ENABLEPROTECTEDAPPLICATIONEXECUTION"=""
"ENABLEUSEBYALLUSERS"=""
"ENABLEPROTECTEDAPPLICATIONEXECUTION2"=""

If I run RegEdit under Sandboxie (in 'DefaultBox') and 'Export...' "BOINC Setup" I get this:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Space Sciences Laboratory, U.C. Berkeley\BOINC Setup]
"DATADIR"="D:\\boinc_6.10.60_windows_intelx86__unp\\CommonAppData\\BOINC\\"
"ENABLELAUNCHATLOGON"=""
"ENABLEPROTECTEDAPPLICATIONEXECUTION"=""
"ENABLEPROTECTEDAPPLICATIONEXECUTION2"=""
"ENABLESCREENSAVER"="1"
"ENABLEUSEBYALLUSERS"="1"
"INSTALLDIR"="D:\\boinc_6.10.60_windows_intelx86__unp\\program files\\BOINC\\"
"LAUNCHPROGRAM"=""
"MIGRATION"="TRUE"
"MIGRATIONDIR"="H:\\BOINC\\"
"MIGRATIONVERSION"=""
"REBOOTPROMPT"=""
"RETURN_REBOOTREQUESTED"="0"
"RETURN_VALIDATEINSTALL"="1"
"SERVICE_DOMAIN"=""
"SERVICE_USERNAME"=""
"SETUPSTATESTORED"="TRUE"
"SETUPTYPE"="Single"

Is this bug or intended behaviour I don't know


P.S.
You may also like this program: RegFromApp
"RegFromApp monitors the Registry changes made by the application that you selected, and creates a standard RegEdit registration file (.reg) that contains all the Registry changes made by the application."
http://www.nirsoft.net/utils/reg_file_from_application.html

Nir Sofer makes many other very-small and useful tools, you may want to check what will be of use for you (I use ~15)
http://www.nirsoft.net/utils/index.html

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- ALF - "Find out what you don't do well ..... then don't do it!" :)
 

P.S.
You may also like this program: RegFromApp
"RegFromApp monitors the Registry changes made by the application that you selected, and creates a standard RegEdit registration file (.reg) that contains all the Registry changes made by the application."
http://www.nirsoft.net/utils/reg_file_from_application.html

Nir Sofer makes many other very-small and useful tools, you may want to check what will be of use for you (I use ~15)
http://www.nirsoft.net/utils/index.html

Thought I responded before xmas to this... aging brain plays tricks...

NirSoft does make some nice apps. Have had shexview.exe and ServiWin.exe installed for years. Thanks for the recommendation.

BOINC 7.4.36 seems to make even more changes to the registry in the components section on regular install. My batch file ran it after two attempts on the HP laptop but I had to use a reg image (Reg Shot Portable) to delete the changes before it worked from the E:\PortableApps\BoincPortable on this Dell m6500. I didn't use Sandboxie to see what happens in the newest version standard install.

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