I'm running Windows 7 32 byte  using Power SDR 2.0.22

If Power SDR tries to load and then give ERROR deltapni.dll is missing here is what other hams  have done to work around 


To make the Delta 44 sound system to work I downloaded Windows Vista 32 SP1 version. After install had to add a older DLL file which can be downloaded from M -Audio web site the dll is DELTAPNI.DLL if you have Windows XP on your system copy this file from windows 32 system file , them add it to  the Windows 7 system 32 file.

Here is the system setup and running



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