POV-Ray : Newsgroups : povray.advanced-users : using multiple versions of POV-ray-- library_paths question : Re: using multiple versions of POV-ray-- library_paths question Server Time: 24 Oct 2020 20:43:48 GMT
  Re: using multiple versions of POV-ray-- library_paths question  
From: Alain Martel
Date: 13 Sep 2020 23:58:15
Le 2020-09-13 à 16:41, Kenneth a écrit :
> "jr" <cre### [at] gmailcom> wrote:
> 
>>
>> never used a POV-Ray Windows version, but wonder whether there's information
>> kept in the (in)famous Windows Registry?
>>
> Alas, I've tried looking there-- but all I see are dynamically-changing entries
> for library paths... like 'last scene rendered', etc etc. I don't see any
> entries (so far) that look like they are 'set' to an unchanging library path
> (i.e., something that *I* could then change and that would retain the changes.)
> But I'm *certainly* no genius when it comes to understanding the Windows
> registry!
> 
> 
> 
> 
> 

Try this location in the registry :
\HKEY_CURRENT_USER\SOFTWARE\POV-Ray\v3.7\Windows

There should be a \HKEY_CURRENT_USER\SOFTWARE\POV-Ray\v3.7-beta\Windows 
entry, or something similar, if version 3.7 beta is installed.

And a \HKEY_CURRENT_USER\SOFTWARE\POV-Ray\v3.6\Windows
if version 3.6 is also installed.

The key entry could be the «Home» value.

Try setting the «Home» value with the same path for both installs.
To be safe, start by renaming the «home» value to something like 
«Home-back» before you change anything else. Then, right click and 
select «New string value» from the contextual menu and type «Home». That 
way, if it don't work, you just delete the edited key and rename the 
backed up one to it's original name.

The worst that can happen here is that the version with the altered 
entry won't start properly and throw some errors.


==============================================================================

NOT all edition of the registry are benign. DO NOT EVER edit anything 
that you are not sure about.

==============================================================================

Never edit anything within \HKEY_CLASSES_ROOT unless you have clear 
instructions. (may screw your associations or make some application 
unstable)
Same for \HKEY_LOCAL_MACHINE\HARDWARE (may disable some component of the 
computer, even prevent it from booting) and \HKEY_USERS (may corrupt a 
user's account).

Keys with names similar to «{0ce4991b-e6b3-4b16-b23c-5e0d9250e5d9}» can 
render some functionalities or feature unusable if altered. DO NOT touch !


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