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

Nov 9, 2012 06:31 PM
by Tommy
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 08:02 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 10:33 PM
by RadiAnt
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 13, 2012 09:04 AM
by Tommy
the zip.dll file is present and is version

I don't know why my Win7 64bit keeps refusing read the zipped DICOM files other PC open without any issue
Nov 16, 2012 10:18 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 03:49 PM
by RadiAnt
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 17, 2012 05:58 PM
by Tommy
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
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