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Sdif.dll not loading on startup

I installed om6.15 on windows 10 from
The sdif.dll is there but it doesn’t load on startup (see attached pic)
Best regards,


Dear RC,

You reported elsewhere the trouble you have loading omaudiolib. Is the issue fixed ?
And how did you fix it ?
For the time being i don’t have a windows 10 to check it out.

No, I just posted it here in the forum and until now I haven’t found a solution. A similar problem happens with OMAudioLib.dll, reported here:

This both issues made om unable to start.
Best regards,

Did you succeed before that to run om615 on windows 10 ?
Maybe a windows upgrade is the cause ?
Can you give us more details ?


No succeed by the moment.
Before I was using an old version (6.12 i think) with win7.
After upgrading to win10 ltsc 2019 I got those errors.
Of course, the upgrade is the problem.
Is there a specific edition of win10 to run om, or should I install other stuff?
best regards,


I tried a new install of OM 6.15 on my Windows 10 laptop. Works OK…none of above messages. I suspect Windows deleted some files during upgrade process. I think upgrade deletes anything it thinks will not be compatible with Win10.

I have a Win 7 machine that will get an upgrade at some point and I intend to uninstall all my open source programs and reinstall after upgrade.

Hope this is helpful.