Installing 2.0.8 and 2.0.10 at the same time

[David McFarlane]

Worked like a charm, thanks!  I wish had known this years ago, but 
your tip came just in time for a new round of testing how various 
E-Prime updates affect some particular bugs (see 
https://twitter.com/EPrimeMaster ).  I did modify the procedure just a bit:

- Install older version of E-Prime (i.e., use existing installed version).
- Find the installed E-Prime program folder and copy it to another 
folder -- e.g., copy "Program Files\PST\E-Prime 2.0" to "Program 
Files\PST\E-Prime 2.0.8.22".
- Install the newer version of E-Prime right over the old version 
(yes, sometimes necessary to first uninstall the older E-Prime, but I 
like to live a little dangerously here).

That's it.  So far I have EP 2.0.8.22, 2.0.8.73, and 2.0.8.74 all 
running on one machine, working up to installing 2.0.8.79, 2.0.8.90, 
2.0.10.242, and 2.0.10.353.  And from now right after each update I 
will just make a copy of the E-Prime program folder, all ready for 
the next update whenever it comes.

-- David McFarlane


At 1/15/2014 07:31 AM Wednesday, JACanterbury wrote:
>Not a question, but some information in case it's of use to anyone.
>
>Although the PST 
><http://www.pstnet.com/support/kb.asp?TopicID=5345>website (ticket 5345)says
>
>Can E-Prime 2.0.8.x and E-Prime 2.0.10.x be installed at the same time?
>No, only major version installations can be installed at the same 
>time. However, multiple versions of the E-Prime 2.0 Subject Station 
>installation can coexist on the same lab machine. 
><http://www.pstnet.com/support/kb.asp?TopicID=5325>KB5325 - FEATURE: 
>Suite, Subject Station, and Run-Time detect other installations on 
>machine (multiple Subject Station versions allowed)
>
>I thought I'd try anyway as I need to support both versions as a programmer.
>
>It turns out that you CAN have E-Studio 2.0.8 and 2.0.10 co-existing 
>on the same machine at the same time.
>
>This is what I did:
>
>    * install 2.0.8
>    * rename the install directory e.g. from c:\program files 
> (x86)\pst to c:\program files (x86)\pst-2-0-8
>    * uninstall E-Prime (control panel / programs and features)
>    * install 2.0.10
>
>Notes:
>
>- the installed shortcuts from the Windows Start menu will be for 
>the lastest version, you'll need to create additional shortcuts to 
>the other version
>
>- when you switch from using one version to the other, you'll be 
>prompted to relicence but this on ly takes a second - This seems to 
>be the only irritation.
>
>- This seems fine for E-studio development work but I wouldn't run 
>any actual live experiments on a system setup like this as I'm not 
>quite sure what versions of drivers the 'other' version might be picking up
>
>- if you want to install e-prime into a different folder, e.g. on 
>your D: drive, select the 'custom' install as this then gives you 
>the option to change the installation directory/folder
>
>
>hth
>
>John

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