JSI Tip 1227. 16-bit app hangs and NTVDM consumes 100% of the CPU?

If this is your problems, the path is too long.

In additions to the steps decribed in tip 0151:

1. You must have at least RX permissions on %SystemRoot%\System32 and it's sub-folders.

2. Shorten the path, if any, in AUTOEXEC.NT.

3. Terminate NTVDM using Task Manager / Processes.