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Question:

     Can I keep and run multiple versions of Dogwaffle, such as PD Artist, PD Particles, and PD Howler?



Answer:

Yes you can. However, you may have to run them as Administrator, either on occasion (when switching from one to another version) or everytime, if you want to automate this. Read below for more details.



What happens if you have installed a new version and then try to run an old version from prior installation?

When installing a new version, the installer probably elevated the program to run as Administrator, which it needs to do just once, so that it may properly register its dependent components. When doing so, the same dependencies that had been registered in the past with the old installation are no longer associated with the prior installed version. Therefore, if you try to run the old version(s), it is likely that it will fail to launch, with this error: "Unexpected error; quitting"

For example, if you had previously been using PD Howler 9.6, perhaps the version through Steam, and you have now just installed PD Particle 9, then trying to run PD Howler would likely have this effect: You'd get the error message: "Unexpected error; quitting"

Unexpected error,
            quitting


This is because some of the components that had been registered with the prior version (e.g. Howler 9.6) are no longer registered with it, and instead have been registered with the newly installed program. It's a separate copy of the same files, but that still prevents them from being associated with the old installation. So, the old prior installation can't be used at the moment, until you re-run it as administrator, which will re-register its components for proper execution.


Ok, so exactly How can I fix this?

When you initially installed the program, the installer elevated and ran the program as Administrator, once, just at the end of the installation. That's all it takes to make it register its components and be ready to properly run. If this was the only version of Dogwaffle installed, you wouldn't see any problems. But now that you've installed another version, the old version is left 'dangling' with missing components (or rather: incomplete registration of components because the same components from the new installation are now registered and associated with the new version).

You can fix this: just run the previously installed version once again as Administrator, at least just this once. Note that after doing so, this prior version can be relaunched again and again without further need to be run as Administrator. But, the newer version(s) that you just installed (prior to trying to run the old version) are then no longer ready to run. It is now its turn to have missing registered components.  If you want to run such new version again, you must in turn run it as Administrator, at least once again, until to decide to switch back to another.

You can easily run the program as administrator from the right-click menu.

To run the program as Administrator, simply right-click its launch icon and select: Run as administrator

right-click the icon to Run as Administrator


 


Is there another, automatic way? I don't want to right-click everytime I switch. I want to double-click the icon or launch it from Start menus.


Yes, you can configure the program to run it as Administrator automatically. Simply right-click the file, and select Properties, at the bottom of the menu:





Then select the Compatibility Tab that shows various compatibility options:

access the Compatibility tab in Properties window


There should be an option to Run this program as administrator. Select that option, then click Apply and/or OK. The example below is from Windows 8.1, yours might be slightly different.




That's it, you can now run that older version of the program too, just by double-clicking it. You will want to do the same trick with the newer and other versions if you keep switching back and forth between various editions such as PD Artist (such as PD Artist version 9.6), or an old PD Pro 4 or 5, or PD Howler (including PD Howler 9.6 found on Steam), PD Particles (including Particle 9), etc...

Obviously, the simplest thing is to only run one version, namely the most recent version. But we understand that sometimes you need time to adapt to new interface looks or other changes. Or, you might have installed a demo version, trying to determine if you want to upgrade. You still need access to the prior, paid version, or even the freeware versions. Also, you may have an old PD Pro 4 or 5 for animation and video work, but may also have installed the new PD Particle 9 for painting with new foliage brushes. There are numerous situations and reasons why you may want to keep both the old and newer versions around on your PC.

Note: When you run it, you will probably see a warning popup from User Account Control, asking if you want to allow this program to make modifications to the system? These modifications pertain to updating the registry in order to re-register the components that are needed by it.
 





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