You can find the older versions of ADE from here.
But if you could share some more details on the crash you are facing, it will be great.
Please share details like:
Any Error/logs you are getting on crash.
If the book is free or non-drm protected, it will be great if you could share the book.
I have the same problem. Running Mac 0S X (Yosemite). The error that I get is that ADE closed because of an error, would I like to report to apple, open or ignore. I attempted reinstalling ADE4.0 several times. Not working. Contacted Overdrive, where the books are coming from, and they do not find the problem on their end. Any help you can give on this would be great. I have read other posts and am going to attempt to download the earlier version 3.0 as it appears that your 4.0 can't handle the Mac OS X upgraded system.
Please download the latest ADE 188.8.131.52137
Some of the crashes have been fixed in this release.
Thanks for being the part of product improvement.
I've installed ADE 4, I have Windows 8
Bought an ebook which was downloaded as .acsm format.
I can not open the book (almost 500pgs) since ADE crashes all the time.
There is an error message: E_ADEPT_DOCUMENT_TYPE_UNKNOWN:
What should I do?
Many tks x your kind help.
i've already tried this and didn't work either... the error message I get refers to a problem in getting the license... don't know what else to do!