Thanks for trying to help. I did consult the document (previously), and, although it is the official answer, it did not solve my problem. The xzp installer that it mentions failed, just as Adobe Extension Manager, to install GuideGuide. I had given up on ever installing it, but thankfully, a correspondent somewhere in this forum (the thread is over two years old, and I have since looked for it, and cannot find it) stated how manually to install GuideGuide 2.1.4. I did this, and, after making little alterations (in CS6, the folders were a bit different), it worked (I am using a Mac, by the way).
Later, after downloading GG v. 3.2.3, I tried to install this in the same way as before. It did not work. That was when I posted on this forum, for ideas that would help. Anyway, essentially, the procedure for v 3.2.3 is essentially the same as that for 2.1.4. However, there is a snag that can throw anyone, as it threw me at first. Below, I am pasting in the document that I composed for others with the same problem. I can guarantee that, if these instructions are followed, you will be able to install G.G. v 3. 2.3 in CS6 at least (and, very likely, in CC also. However, I can only speak from my own experience, and I do not use CC. Nor do I ever use Windows, so the instructions for a Windows installation may need a little alteration also. Here is my document:
INSTRUCTIONS FOR MANUAL INSTALLATION OF GUIDEGUIDE (version 3.2.3) into Photoshop CS6 (and, possibly, other versions of Photoshop)
Sometimes, Adobe Extension Manager will not install an extension. Below is a way of manually installing GuideGuide version 3.2.3 into Photoshop CS6 (it is assumed that the same method will work with other versions (for example, CC), but here, mostly, we are dealing with CS6 only).
GuideGuide, in various versions, may be downloaded in compressed form (an .xzp file) from the Internet. Here is the address for version 3.2.3: http://guideguide.me/versions/
If, for whatever reason, Adobe Extension Manager is unable to install this particular extension, then you will be compelled to use the free app called “The Unarchiver” ( http://unarchiver.c3.cx ).
Open the above app, and select the .xzp file that needs to be opened. The Unarchiver will then present you with a folder that contains seven items. Only one of these folders is relevant for CS6, and this is the folder entitled: cs6. Drag this out from the folder, and trash all the rest. (Of course, if you wanted to install into Photoshop cs5 or cc, you would, instead, drag out the folder with that name.) Anyway, open the cs6 folder. In it, you will see yet another .xzp file. With the Unarchiver, open this file. You will be presented with a folder entitled “guideguide”. This folder is the one that, in order to make GuideGuide 3.2.3 work, you need to copy into the correct place.
For Mac: (After making sure that Photoshop is not open.)
1). Open: /Library/Application Support/Adobe/CS6 ServiceManager/extensions/
3). Copy the above-mentioned guideguide folder into it.
For Windows (After making sure that Photoshop is not open.)
1). Make sure that the folder that you finally extracted is is entitled: guideguide
2). Open up C:\Program Files (x86)\Common Files\Adobe\CEPServiceManager4\extensions
3). Copy the GuideGuide folder into it. (Depending on how up-to-date your version of Windows is, you may need to see whether the relevant folder has a name that is slightly different to the above.)
Mac AND Windows
Relaunch Photoshop, and, in Photoshop, go to Windows > Extensions > GuideGuide. (G.G. can be “docked”, just like any other palette.)
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