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I try to install com0com - a null modem emulator on Windows Vista. But I fail because Windows Vista doesn't let me install a driver that is not digitally signed.

I followed the instructions in the readme:

  1. Inactivate UAC
  2. Run bcdedit.exe -set TESTSIGNING ON
  3. Reboot the computer.
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2 Answers

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Try running bcdedit.exe -set TESTSIGNING ON in an administrator command prompt (Run as Administrator). Or try: http://www.ngohq.com/home.php?page=dseo instead.

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Thanks, the problem was that I wasn't logged in as an Administrator when I run the command the first time. – Jonas Jun 30 '10 at 11:26
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Is 32 or 64 bits Vista? I remember reading in the OSR mailing list that unsigned drivers can not in any way be installed in vista 64 bit. Hope this helps.

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It's 64 bit. I got it working now, see the answer by BloodPhilia. – Jonas Jun 30 '10 at 11:27
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