CryptographicException on SignedCms.Decode

Question

I have a function that read content of signed file (eg. [MYFILE].xml.p7m) by this code:

 Dim signedCms As New SignedCms()

 signedCms.Decode([MYFILEBYTES])

 Dim content As Byte() = signedCms.ContentInfo.Content

Unfortunately I need to run this program on an old "Windows Server 2003 R2" system, but it generate this exception:

Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.Security.Cryptography.CryptographicException
Stack:
   at System.Security.Cryptography.Pkcs.SignedCms.OpenToDecode(Byte[], 
      System.Security.Cryptography.Pkcs.ContentInfo, Boolean)
   at System.Security.Cryptography.Pkcs.SignedCms.Decode(Byte[])

with message "Unknown cryptographic algorithm".

On another "Windows Server 2003 R2" machine, it works correctly.

My question is: what component should I install on "Windows Server 2003 R2" for the signedCms.Decode statement to work correctly?