Printer spooler hang if wait for termination

[nicolapiazzi]

If you put a check into Wait for termination (is is not important if 0 or larger number)
And have a program that doesnt terminate, non necessarly cpu intensive, i used this a.bat
a.bat
:loop
time /t >> c:\aaa.txt
echo Ooops
timeout /t 3 /nobreak
goto loop

Printer spooler hangs when you try tho show ports properties, and remote queue hangs, need restart machine

If you use a script that ends, like this :
a.bat
time /t >> c:\aaa.txt
echo Ooops
timeout /t 30 /nobreak

After 30 secs il leave the queue and stay working, but if you watch port properties before it finished it hangs and need to restart

Thx
Nicola

[Bodenseematze]

I can confirm the issue - it's the same here - when trying this in a Win7 VM a dialog opened, saying that a program in the background wants to show you some message - then it opened a different (background?) desktop but doesn't show anything...

[lomo74]

I think this is due to the external process being waited for on the main thread of the spooler. To overcome this limitation, a worker thread should be spawned. This is not trivial. I'm going to dive into the issue.