We've had the nallshell crash on explorer for a while now and according to the TID's this should be fixed, but so far its only gotten worse for us.

Naam van toepassing met fout: explorer.exe, versie: 6.1.7601.17567, tijdstempel: 0x4d672ee4
Naam van module met fout: NalShell.dll, versie:, tijdstempel: 0x50a9e5d7
Uitzonderingscode: 0xc0000005
Foutoffset: 0x000000000000bab1
Id van proces met fout: 0x4a4
Starttijd van toepassing met fout: 0x01ce08f3ba982161
Pad naar toepassing met fout: C:\Windows\explorer.exe
Pad naar module met fout: C:\Program Files (x86)\Novell\ZENworks\bin\NalShell.dll
Rapport-id: 6cfafec7-74e7-11e2-b2a2-782bcbaa63f8
We went from 10.3.4 to 11.2.2 and the crashing went from once or twice a day to once or twice per hour.
From what I can tell it does not actually cause any real problems other then the crash message.
We're not extensively using Win7 yet but we can't really put off using Win7 as the mainstream desktop for much longer.