I use com0com in a teaching environment and have run into this problem. Depending on the version of win10 (home/pro/education and version number) that particular students have and whether it s a clean install or upgraded v3.0 of com0com may or may not work. v2.2 signed is working fine. Using test mode etc for v3.0 not really a workable solution in our case. Any news on getting the signing issue with v3.0 resolved?
Minor, minor, minor thing - not even an issue... On your download link http://simulide.blogspot.com/p/downloads.html the 0.2.9 release is listed under the 0.1.7 heading... Sorry to be a pain - confusing for my poor students! -Ben.