Re: Question...?

On 09/03/2006 05:16, josh wrote:

You can run one version of all the normal Windows browsers (IE,
firefox, Netscape) together on one machine just fine.

And as they are all free, there's little excuse for a developer not to do so. Opera and Mozilla can be added to that list, too.

Internet Explorer does not allow itself to be installed with multiple
versions (which is very important to test for)

Officially, no.

but people have figured out hacks to make it work so that you can run
several different versions.

The evolt.org browser archive[1] contains standalone versions of previous IE browsers.

I think Netscape is the same way [...]

All of the browsers mentioned above will permit multiple installations. On this machine, I have a total of 21 browser versions to test scripting and style *** differences.

IE can be downloaded as separate, archived installations. There are some bugs in some versions (Favourites menu, Location bar, setting cookies), and it can be difficult telling them apart (the About information displays the same version number as the system IE).


Mozilla, Firefox, and Netscape use profiles to store preferences. A separate profile should be used for each version to ensure that there's no interference. Starting each browser version with the -profilemanager flag, for example:

firefox.exe -profilemanager

will allow you to create a unique profile. For simplicity, modify
the Start menu short cut to include the newly created profile name:

firefox.exe -p "Firefox 1.0"


Multiple Opera versions can be installed together, but unless the registry is modified after each installation, it can be difficult to uninstall as previous keys will be overwritten.

Simply find the key below and rename it, and the DisplayName value to reflect the version so you can identify it for uninstallation later.

\HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion
\Uninstall\Opera

I add the version number in parentheses: \Opera (7.54)

Finally, edit Install.log in the UnInst directory of the Opera installation and find the old registry key that was just modified (the line will begin 'RegDB Key:'). Change it and the DisplayName value accordingly.


You can have more than one version of each browser running at the same time without problems, with one exception: Firefox.

Mike


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[1] <http://browsers.evolt.org/>

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Michael Winter
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