I have been having the same problem as well with the missing SOAP file. I removed all the files, although Windows 10 does not show the MSXML files except 4SP2 and does not show Soap 3.0 Toolkit either. I reinstalled from the link as well as the soap download and still no luck. I tried downloading on my old Vista computer and I could see all the MSXML files as well as the soap toolkit downloading but this way I lost all my completed returns. Any suggestions other than print and file by mail.