Is there a workaround to use TLS 1.2 with .NET 4.0 (ftp client in x++)?

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Posted on by vv1984

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Hi,

I've working with Ax 2009 on Windows Server 2008 R2 Enterprise. .NET Framework is supposedly 4.0 (if i look at the System.Net.SecurityProtocolType enum, i've got only Ssl3 and Tls option. No Tls11 or Tls12 available).

If I have no chance of upgrading to .NET 4.5 (or higher), is there any way to effectively communicate with a ftp server which is now requiring TLS? Error code I'm getting from that ftp server is "234 AUTH TLS OK" when i send my program's first ftp command NLST.