# unknown TException

**URL:** <https://forums.steinberg.net/t/unknown-texception/616376>\
**Category:** WaveLab\
**Tags:** wavelab-older-versio\
**Created:** [June 12, 2012, 11:06am UTC](https://forums.steinberg.net/t/unknown-texception/616376 "2012-06-12T11:06:31Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![close](https://avatars.discourse-cdn.com/v4/letter/c/e9c0ed/32.png) [@close](https://forums.steinberg.net/u/close)\
**Post date:** [June 12, 2012, 11:06am UTC](https://forums.steinberg.net/t/unknown-texception/616376/1 "2012-06-12T11:06:31Z")

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I have tried to load the wavelab 6 program and it loads but when I attempt to use it I get this message “Unknown TException”, and I cannot access the program. Has anyone had this experience and what did you do to fix it?

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**Author:** ![pranza](https://avatars.discourse-cdn.com/v4/letter/p/e79b87/32.png) [@pranza](https://forums.steinberg.net/u/pranza)\
**Post date:** [October 13, 2019, 1:05pm UTC](https://forums.steinberg.net/t/unknown-texception/616376/2 "2019-10-13T13:05:57Z")

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Which Windows is that?  
Sometimes, when the pc is on for a long time like a month, it starts giving such errors randomly on launch. I have a suspicion that that might somehow be related to GDI resources as around that time I start to have refresh problems of level meters in Samplitude / Sequoia too. So far haven’t found a cure to these issues but a restart.

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**Author:** ![Russell\_Harris](https://avatars.discourse-cdn.com/v4/letter/r/8491ac/32.png) [@Russell\_Harris](https://forums.steinberg.net/u/Russell_Harris)\
**Post date:** [January 2, 2026, 2:17pm UTC](https://forums.steinberg.net/t/unknown-texception/616376/3 "2026-01-02T14:17:53Z")

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Yep, I get that error as well sometimes. Windows 10, Wavelab 6. What I did was click on the “ok” box with the error message, so the program didn’t launch. Then shutdown the PC. I turned off my Scarlett sound interface. After a restart of the pc, i waited a few minutes and left my Scarlett sound interface off. I launched wavelab 6 icon, with right-click run as administrator. It launched! happy days. Waited a few mins then turned Scarlett on. This method seems to work as of January 2026.

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**Author:** ![Paul\_Rat\_Blakey](https://dub1.discourse-cdn.com/steinberg/user_avatar/forums.steinberg.net/paul_rat_blakey/32/92359_2.png) [@Paul\_Rat\_Blakey](https://forums.steinberg.net/u/Paul_Rat_Blakey)\
**Post date:** [January 3, 2026, 6:02am UTC](https://forums.steinberg.net/t/unknown-texception/616376/4 "2026-01-03T06:02:20Z")

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I have not used WL6 for many years but I do recall that sometimes unplugging the dongle, restarting and then inserting the dongle in a different USB slot usually solved these sore of error messages. Good luck.