http://bugs.winehq.org/show_bug.cgi?id=10472
--- Comment #7 from Claudio Freire freireclaudio@yahoo.com.ar 2008-12-10 06:25:01 --- "nsp.dll" is part of Intel's signal processing library, along with several other dlls. You can download it from intel's page, however, the library has been largely overhauled since the application was developed and is now called "Intel Integrated Performance Primitives", http://www.intel.com/cd/software/products/asmo-na/eng/302910.htm
I don't know how compatible those two are (perhaps source-level compatible, but I truly doubt they're binary compatible), so I'll be uploading the dlls as well, however the attachment system doesn't let me do this (they are several MBs in length), so I'll be posting a link to an FTP shortly.
To follow up on this bug, the latest versions of wine have fixes some of the minor bugs I was referring to (many related to sound output and thread synchronization issues), but I'll have to check with the latest to confirm whether this specific bug is still there (I haven't tried the latest latest wine yet).