"Failed to open rtlsdr"

[OE3JGW]

I really want to try this out, but when i start the program (windows 11) it opens and shows me the selection of sdr-devices.. if i choose rtlsdr the following error message will be shown in the command line window:
"Failed to open rtlsdr"

No further details.
I just installed it with the setup which is in the release.
In SDR-Console and sdr++ my sdr sticks are both working fine.

Any idea? :(

[JvanKatwijk]

I see,
there is a naming issue, copy the file librtlsdr.dll to rtlsdr.dll in the folder C:\Program Files(x86)\swradio9
Be aware that not all sticks work here, only the ones using an RT820 based tuner and be aware that the frequency
range of these sticks does NOT cover frequencies below app 20 MHz