# FB hangs on "If COM class registered"
**URL:** https://www.finalbuilder.com/forums/t/fb-hangs-on-if-com-class-registered/2993
**Category:** Bugs
**Created:** [June 3, 2008, 11:53am UTC](https://www.finalbuilder.com/forums/t/fb-hangs-on-if-com-class-registered/2993 "2008-06-03T11:53:58Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@amoshkovich](https://www.finalbuilder.com/forums/u/amoshkovich)
#### Post date: [June 3, 2008, 11:53am UTC](https://www.finalbuilder.com/forums/t/fb-hangs-on-if-com-class-registered/2993/1 "2008-06-03T11:53:58Z")
Hello,
1) I have registered COM (name.dll)
2) Use action "If COM class registered" \> "Identify By Programatic ID" \> name.main
FB closes everytime it exec action "If COM class registered" (looks like action is in Comleted state). It works fine for Skipped state like if I unregister COM or use non-existing method.
It does not make any difference if there is another action under "If COM class registered" or no action at all.
Is there a way to check a log why FB hangs?
Thanks,
Alex
---
### Author:  [@angus](https://www.finalbuilder.com/forums/u/angus)
#### Post date: [June 10, 2008, 1:52am UTC](https://www.finalbuilder.com/forums/t/fb-hangs-on-if-com-class-registered/2993/2 "2008-06-10T01:52:55Z")
Hi Alex,
Thanks for your email, sorry to hear you’re having problems. What version of FinalBuilder are you using?
If you reopen FinalBuilder and look in the Log File for the run when FinalBuilder crashed, what output do you see in the log?
Also, if you navigate to your temporary folder (type %TEMP% into Windows Explorer), do you see a file called “finalbuilder bugreport.txt”? If so, could you either attach it here or email it to [support@finalbuilder.com](mailto:support@finalbuilder.com)? Thanks.
Regards,
Angus