How do I sign a VSTO deployment?

Client purchased a code-signing certificate, and it came with a .pvk file and a .spc file. I am familiar with the .pvk file, but Visual Studio doesn't recognize the .spc file.

When I try to load the .spc file as the ClickOnce Certificate, a message box says "The selected file does not contain a private key. You must choose a certificate that contains a private key.开发者_如何学JAVA"

Did the client buy the wrong thing, or am I not in the right spot?

Google is your friend.

http://jcsearch.com/blogs/PCTechSupport/312