RadiAnt DICOM Viewer - Discussion Forum
64-bit version doesn't open zipped DICOM [UPDATE: problem solved]

I have DICOM studies zipped on Win7 64bit using 7-Zip 4.65 32bit.

RadiAnt 64bit version fails to load them (messagebox says: "no dicom files found").
the zip file is not corrupted: if unzipped RadiAnt loads the images.

now, if I load the same zipped DICOM study on RadiAnt 32bit on WinXP 32bit, the case is laoded with no issue.

so where's the problem?

is RadiaAnt 64bit's fault or 7-Zip's fault?


Nov 9, 2012 07:31 PM
by Tommy
to make things stranger is the fact that the same zip file correctly loads on Vista 64bit using RadiAnt 64bit


Nov 9, 2012 09:02 PM
by Tommy
We tried that zip file and it opens without a glitch. Could it be something wrong with your installation? Perhaps missing zip.dll file in RadiAnt program folder?


Nov 9, 2012 11:33 PM
by RadiAnt
the zip.dll file is present and is version 0.55.0.1

I don't know why my Win7 64bit keeps refusing read the zipped DICOM files other PC open without any issue


Nov 13, 2012 10:04 AM
by Tommy
I'm still experiencing the same issue even on 1.3.7 beta.

I start thinking is a problem of my system... a friend of mine with Win7 64bit opens the same files with RadiaAnt witho no trouble.

Maciej, what should I try to make it work?


Nov 16, 2012 11:18 AM
by Tommy
hmm... that's a real strange one.
Could you try to run RadiAnt and open the zip file
1) from admin account
2) from normal user account ?


Nov 16, 2012 04:49 PM
by RadiAnt
hi Maciej, I've found the root of the issue... it wasn't RadiAnt's fault... it seems that 7-Zip was guilty.

I upgraded 7-Zip from release 4.65 (quite old indeed) to more recent 9.20 and now zip files are now fully readable.

please, add "solved" to the title of this thread


Nov 17, 2012 06:58 PM
by Tommy
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