Hello, I just joined to share this information. I hope I get it right. This is not a question, more like "I discovered something strange, here's the information".

I'm using Daum SVN february 05 2013.
Some specs just in case: this computer is a core 2 duo 2.26ghz 4gb ram, nvidia gt9600m 512mb graphics, windows 7 ultimate 64 bits.
I have a folder mounted as the C hard disk:
mount c d:\emu\dosbox\disk
and I mount d as the cdrom, I use either a real drive (mount d e:\ -t cdrom) or daemon tools with the simulated drive being f: in windows and mounted to d in dosbox (mount d f:\ -t cdrom) or loading an iso image using the program's gui. (equivalent to the imgmount command).
I don't think the problem I'll describe has anything to do with paths, drives, images, I double checked everything and it's all properly mounted, I know where the files and folders are, I've been using DOSBOX a lot for some years and I've been using real DOS my whole life, so I guess it's not like I misplaced a folder or something like that.
So, here it goes:
I tried to install "star trek 25th anniversary" and "judgement rites" (the interplay adventure games) cd versions and I got some errors. 25th anniversary installed but gave an error message, "invalid command" intead of quitting to DOS with the usual message of "type startrek to run the game, setup to configure" or something like that. the program terminated abnormally.
I thought "how weird", then when I tried "judgement rites" the installation kept failing, it didn't copy all the files to the hard disk, it copied just a few files and ignored the rest, it didn't even copy the exe and bat files, just 3 or 4 files (it's supposed to be more than that). during the copy process the installation screen displayed weird black bars, I thought it was just a glitch, but it's not. (keep this in mind). the program exits normally, doesn't crash. ok, I tried changing the installation path to a shorter directory like "c:\trek2" instead of "c:\intrplay\trek2", I tried different ways of simulating the cd drive, with an iso, with daemon tools, with a folder, and every time I got the same results, it just refuses to copy most of the files. if I explored the cd with dir or even xtree gold, the whole thing is there, and the files are not damaged, if I copy them directly on windows to a folder they copy. the problem is internal.
I thought "maybe it's a weird incompatibility", so i tried disabling stuff like glide and joystick, I tried surface, directdraw and direct3d, setting the cpu to 486, setting the core to normal instead of auto or dynamic, lowering the ram, 1mb of video memory instead of 2, and during the vgaonly test I got something interesting: the black bars during the installation are the text error messages!. in svga in color you can't see it but it's readable in the greyscale mode the installer uses in vgaonly!.
The error messages are a lot, one for each file the installation program tries to copy, and they go like this:

C:\INTRPLAY\TREK2>copy D:\fed.dir C:\INTRPLAY\trek2\.
copying D:\FED.DIR to C:\INTRPLAY\TREK2\.DIR.
Working...
Unable to open C:\INTRPLAY\TREK2\.DIR.
0 file(s) copied.
Unsuccessful termination.
C:\INTRPLAY\TREK2>copy D:\fed.run C:\intrplay\trek2\.
Copying D:\FED.RUN to C:\INTRPLAY\TREK2\.RUN.
Working
Unable to open C:\INTRPLAY\TREK2\.RUN.
0 file(s) copied.
Unsuccessful termination.

repeat that a lot, one per each file.
I checked and the files exist in the source, the destination folder is not read only, there's nothing unusual.
I tried copying the files myself manually using the same syntax and the same thing happened.

I tested it on the latest Daum SVN (2015 012 5) and the same thing happened, BUT... when I tried on normal 0.74, vanilla svn 3990, and an older svn based on 0.73, (under the same conditions, same folder as C, same drive as the CD, same destination path, same configuration for cpu, core and everything) THE INSTALLATION WORKED PERFECTLY. (on both games, 25th anniversay worked too). The program copied all the files normally, the game worked.
So, my conclusion is Daum SVN's version of the copy command behaves differently, it must manage wildcards differently than "normal" dosbox or real dos. it's obvious it's not the same implementation when I run just "copy" and it displays information about the usage that's different from what the "normal" dosbox copy displays if you just run it with no parameters. the help is not the same.
I guess Daum SVN uses a different copy tool??, maybe a third party replacement copy code??.
For this game the solution is easy, install on 0.74. I'm considering switching to 0.74 full time but I like the gui in Daum SVN, it makes it easier to mount floppy or cd images... but... I'm worried the different behaviour in the copy utility might break something else.
That's why I decided to make this long post. Sorry for the bad english, sorry for the convoluted story, but since I came across this weird incident I figured it might help somebody else that's going insane trying to install Star Trek 25th Anniversary CD or Judgement Rites CD using Daum SVN.
I bet the problem might be a combination of how the installation program uses the copy syntax and how the Daum SVN uses wildcards. Maybe the installation program does sometihng "unorthodox" not covered by the Daum implementation of the copy command?.
Anyway, I hope the unexpected behaviour doesn't break anything else, I haven't had any other problems with it, and worst case scenario, I'll switch to a vanlla version.
I'll attach a capture of the error messages displayed by the game installer just in case. (using vgaonly forces it into greyscale mode, in normal conditions like s3 or nolfb vesa it uses 640x480x256 and you can't read the error messages, they are just black bars).
Thanks for your time.