ICSharpCode.SharpZipLib.dll?

Question

I'm working on a project that uses the latest NuGet version of this DLL to create and encrypt a zip file for output to disk.  The current NuGet version is 1.4.2.13.  However, there is a very old version of this DLL in \bbappfx\bin (version 0.85.0) dating back to 2011 or earlier.  This old version is no longer in NuGet and doesn't appear to be supported.  When attempting to use the current version, an error occurs indicating it can't load the correct version of the DLL.  I can get around this by renaming the old version to ".old".  Does anyone know if any part of CRM uses this old library?  I've tried a binding redirect in my app.config but it doesn't eliminate the error.

Lester Porter · Answer

Thanks, Chris.  This project exports constituent attachments to an encrypted zip file.  I don't think the bin version supports modern encryption standards so using it is probably a non-starter.  For now, in our Dev environment, we've renamed the \bin version by adding ".old" to the end of the name and we've placed the current version in \bin\custom.  We haven't seen any negative consequences in Dev but that is Dev, not Prod, so  a lot of things probably aren't running.

Chris Ager · Answer

Hi Lester, we are planning to update this in a future service pack but at the moment, I cannot say for certain which one.  The short answer, there are multiple areas that use the assembly across CRM and BBIS, and some older customizations also reference this.  If this is for a customization you are building, are you able to reference the bin version until we get to this update? I will look to get this up the list in the elements we are updating.

Lester Porter · Answer

Thanks, Crystal.