2 installations on one windows system
Posted by: kbaerthel (---.dip0.t-ipconnect.de)
Date: January 21, 2026 07:41PM

Today I learned that you can only have one WAMP Server installation. Unfortunately, I now have two, and the applications on the first installation are no longer available.

How can I move the applications, including the database, to the second, new installation?

Thanks in advance.

Options: ReplyQuote
Re: 2 installations on one windows system
Posted by: Otomatic (Moderator)
Date: January 22, 2026 10:14AM

It is normally impossible to install two Wampservers on the same system!
How did you do it?

Why reinstall a second version?

For VirtualHosts, simply copy the httpd-vhosts.conf file.

For databases, if you don't have an export in SQL format, it's virtually impossible.

First, you need exactly the same versions of MySQL and MariaDB on both versions.

Wouldn't the simplest solution be to reactivate the first version?

---------------------------------------------------------------
Documentation Apache - Documentation PHP - Documentation MySQL - Wampserver install files & addons

Options: ReplyQuote
Re: 2 installations on one windows system
Posted by: kbaerthel (---.dip0.t-ipconnect.de)
Date: January 22, 2026 05:39PM

Any thanks. Please see my comments

It is normally impossible to install two Wampservers on the same system!
Sorry, that wasn’t an issue at all. See below.

How did you do it?
I got an error message on the first installation and so I tried to reinstall wampserver on this folder, but that wasn’t possible. I got a message saying I should use another folder and so I did. The second installation run without any error message on the new folder.

Why reinstall a second version?
See below.

For VirtualHosts, simply copy the httpd-vhosts.conf file.
On each installation there are 3 files named httpd-vhosts.conf. The files are identical.

For databases, if you don't have an export in SQL format, it's virtually impossible.
Unfortunately I have only backup file, from the most important application i Haven’t.

First, you need exactly the same versions of MySQL and MariaDB on both versions.
I assume the versions are identical.

Wouldn't the simplest solution be to reactivate the first version?
Yes, that would be the best solution!

Options: ReplyQuote
Re: 2 installations on one windows system
Posted by: Otomatic (Moderator)
Date: January 22, 2026 07:26PM

> I got an error message on the first installation and so I tried to reinstall wampserver on this folder
The content of the error message is very important, and this error must be resolved before attempting to install another version or reinstall the first one! In fact, reinstallation is impossible.
What is possible is to install an update!

- How to reactivate the first version.
-- Delete the three services wampapache64, wampmysqld64, and wampmariadb64.
For example, in a command window as an administrator, use the command:
sc delete wampapache64
sc delete wampmysqld64
sc delete wampmariadb64

Then launch the first version of Wampserver.
If the error message is different from "no service is running," report it here.

It would also be helpful to report the Wampserver version number as well as the Apache, PHP, and MySQL versions used.

Sorry about tonight, but it's time to close up shop.

---------------------------------------------------------------
Documentation Apache - Documentation PHP - Documentation MySQL - Wampserver install files & addons

Options: ReplyQuote
Re: 2 installations on one windows system
Posted by: Otomatic (Moderator)
Date: January 23, 2026 09:50AM

Trying to get the old version working again seems a bit risky to me, since the shortcut points to the new version and the registry information also points to the new version.

- Launch the new version, preferably via its shortcut.
The icon will not be green since you have deleted the services.
- Right-click -> Tools -> Reinstall all services.
After about 30 seconds, the icon should turn green.
- Exit Wampserver.

On the new Wampserver, install exactly the same version of MySQL (or MariaDB ) that you were using on the old one.
For your information, everything can be found at https://wampserver.aviatechno.net/.
- Launch Wampserver and switch to this version of MySQL (or MariaDB ).
- Exit Wampserver.
Continue if everything is working...

Please provide the installation path for the old and new versions, as well as the MySQL version used.

---------------------------------------------------------------
Documentation Apache - Documentation PHP - Documentation MySQL - Wampserver install files & addons



Edited 2 time(s). Last edit at 01/23/2026 04:04PM by Otomatic.

Options: ReplyQuote
Re: 2 installations on one windows system
Posted by: kbaerthel (---.dip0.t-ipconnect.de)
Date: January 23, 2026 04:41PM

Reading your note from Jan 22 05:39 I did:

The services were deleted.
The launch of the old system wasn’t an issue, a few brief black windows appeared without a message, at least I couldn't see any.
But after that the “localhost” wasn’t available.
-Problem loading page – Unable to connect

And checking the list of services: the 3 wamp-services wasn’t started at all
without any success.

According to wampmanager.conf:
wampserverVersion ="3.2.6"
installDir ="d:/wamp64"
installVersion ="3.2.6"

Now I will study you note from today.

Options: ReplyQuote
Re: 2 installations on one windows system
Posted by: kbaerthel (---.dip0.t-ipconnect.de)
Date: January 23, 2026 04:54PM

According to your advice from today I have tried now to launch the new installation:
and after some seconds “Apache error” in big red was shown.

Remember the services I had deleted with the last action, may that is the reason.

Options: ReplyQuote
Re: 2 installations on one windows system
Posted by: Otomatic (Moderator)
Date: January 23, 2026 05:23PM

In an Administrator command window, go to: c:\wamp64\bin\apache\apache2.4.xy\bin\ then type:

httpd.exe -n wampapache64 -k install
sc config wampapache64 start=demand

This will create the Apache service and you will then be able to launch Wampserver.

---------------------------------------------------------------
Documentation Apache - Documentation PHP - Documentation MySQL - Wampserver install files & addons

Options: ReplyQuote
Re: 2 installations on one windows system
Posted by: kbaerthel (---.dip0.t-ipconnect.de)
Date: January 23, 2026 06:51PM

After the last activity described by you I could start the new installation without issue.
The icon goes to green and the localhost is available with a few default databases and without any applications. All that seems to be correct.

Then I have stop the new one und the icon was gone.
Next I have started the old one. The icon goes also to green, the localhost is available, but also without any application. That isn’t correct at all, I assume the start of the old application goes to the localhost of the new application, that I cannot understand!

It seems nothing was solved. Sorry.

Options: ReplyQuote
Re: 2 installations on one windows system
Posted by: Otomatic (Moderator)
Date: January 24, 2026 09:11AM

> The icon goes to green and the localhost is available with a few default databases
> and without any applications

How were your "applications" declared in the old version?
- By folders in wamp64/www/?
- By VirtualHost?

Theoretically, with Wampserver 3.2.6, there is MySQL 5.7.36 and MySQL 8.0.27.
Which version were you using with the old version of Wampserver?
This is very important!

---------------------------------------------------------------
Documentation Apache - Documentation PHP - Documentation MySQL - Wampserver install files & addons

Options: ReplyQuote
Re: 2 installations on one windows system
Posted by: kbaerthel (---.dip0.t-ipconnect.de)
Date: January 24, 2026 10:27PM

To your question about applications. The are declared by folder in wamp64/www/


The issue solved!!
I did as described in topic
[stackoverflow.com]
and all is fine for me!
Thanks for your support.

Options: ReplyQuote


Sorry, only registered users may post in this forum.