Chaps, I'm still wondering what to do about my expired cert, but after a fair bit of searching I finally found some relatively clear instructions on how to make a PFX file (outside of the IDE). The relationship between cer, pvk and pfx files is tricky to clarify, including what can be exported or converted to what and when using what utilities.
http://www.digitallycreated.net/Blog/38/using-makecert-to-create-certificate s-for-development I stripped it down to this BAT file to make cer and pvk files and finally a pfx file that I can use for test signing. set CN=My Company Name set FN=mycompany set PSW=xyzzy makecert -n "CN=%CN%" -a sha1 -sky exchange -pe -sv "%FN%.pvk" "%FN%.cer" pvk2pfx -pvk "%FN%.pvk" -spc "%FN%.cer" -pfx "%FN%.pfx" -pi %PSW% Greg
