So you're not installing 0.91 because of the missing handles in 0.92.1? You had some other reason?
Run as Administrator, and not being able to paste into or edit in the Program Files, are 2 different things. However, you have to be the system admin to do either one.
as I run 64 bit and I wanted the program to match when I installed ver.91.
What do you mean by "match"? You mean you just want the 64-bit version of Inkscape, because it will run more efficiently than the 32-bit version?
Or are you trying to comply with that strange comment on the download page, about exe and msi not being compatible? I don't know what that really means. Because no version of Inkscape will update any other version. And it can't be hinting that we can have more than one version of Inkscape installed (as long as they are all exe or all msi). See more below.
If that's the reason you're trying to install 2 different versions using msi, I'll ask developers what that comment there really means (I'll ask on the mailing list).
So you intend to have both versions installed? It's pretty much best practice advice, afaiu, not to have more than one copy of the same program
installed at the same time. (I used to think, until recently, it was ok, as long as they were different versions, but it turns out, that's not so.) (The Inkscape website actually used to say, specifically, that it was ok to have several versions installed at the same time, as long as they are in different folders. But apparently it's not ok anymore.)
So if you want to have more than one version of Inkscape in Windows, you can have one (exe or msi) installed. (Not one of each, but one or the other.) After that, you should use 7z packages (since technically it's not installed) to collect more Inkscape versions.
For all I know, it's having 2 msi packages of Inkscape installed, that's causing the problem? (Or maybe you somehow downloaded the wrong thing?) I can't explain the missing lib file. It's also possible it's a new bug (although my search for a bug was not successful). I think Moini knows a way to find errors using the terminal / commandline. So that might be a way to find out if it's a new bug -- if she happens to be following this thread. I don't know how to use the commandline.
I'm not familiar with msi, so I always use exe. I have no idea what the difference is. But I've heard of problems with installing the msi package several times. And that sounds like a whole lot of trouble you had installing the msi version, to me. I've never heard of any problem related to exe.
If you don't want to use the 7z package, and you still want to have both versions
installed, I would still offer the same suggestion now, which is to make a clean re-install. But instead of searching for leftover bits (after uninstalling) you should probably look manually in Program Files and delete the empty folders. Because if you have another version installed, it would be found in the search, and you wouldn't want to delete any parts of it.
P.S. Nick was not specific. I think he had some bugs before ver .92.1 came out. (I'm only guessing about that) He just said he recommended ver..91. which would have been fine except it wont run on my machine.
I wouldn't revert or install a 2nd version, just because someone else mentioned some non-specific issues. Think for yourself, man
If you have found some specific issue, which you know doesn't exist in a previous version, that's fine. But for myself, I'm not a lemming (jumping off the cliff because everyone else is). I'm a human who thinks for herself