com0com virtual port not found

Question

I have installed, apparently successfully, com0com v2.2.2.0 on a 64bit Windows 7 machine.

I run the command utility, like this:

command> install PortN         


        

Answer 1

Here are my points:

• Microsoft requires 64-bit drivers to be signed.
• com0com.sys (64bit) is a mere unsigned kernel-mode driver.

SoftWx has written an interesting tutorial on installing it on a 64 bit Windows 7 machine. You can fetch it here.

Answer 2

In case anyone is referencing this, and interested in this topic, the 2.2.2.0 version of com0com is signed for 64-bit Windows. This removes the need to jump through the hoops of putting Windows in "test" mode.