I have a program that is deployed on multiple Windows7 32bit machines. It runs flawlessly on all of them.
I just installed it on a Windows7 64bit machine and it's now crashing immediately after executing cryptStream.FlushFinalBlock() with the following error:
The program '[2972] Billing.vshost.exe: Managed (v2.0.50727)' has exited with code -1073740940 (0xc0000374).
I also tried running it on the only other OS I currently have installed, Vista 64bit, but I get the exact same issue. This is within a try block but nothing gets caught. It just fails immediately. Is there a known compatibility issue with CryptoStream and 64bit OSes or is this probably something else? Any ideas on how to troubleshoot it?
I hate answering my own question, but perhaps it will help someone else out in the future.
If the bit array you're decrypting is null, it will crash on a 64-bit OS when running FlushFinalBlock().
They say it has been closed and updated in a future release of the framework, but I'm on VS2010 and still getting it.