How can constructing an X509Certificate2 from a PKCS#12 byte array throw CryptographicException(“The system cannot find the file specified.”)?

Question

I\'m trying to construct an X509Certificate2 from a PKCS#12 blob in a byte array and getting a rather puzzling error. This code is running in a desktop applica

Answer 1

I had this same problem.

1. Open IIS on the server hosting the site.
2. Find the application pool for the site.
3. Click Advanced Settings.
4. Change "Load User Profile" to true. (may require restart or reboot)

This allows the crypto subsystem to work.