Versions

6.3.9600.16384 (winblue_rtm.130821-1623)	0.22%
6.1.7600.16385 (win7_rtm.090713-1255)	1.32%
6.0.6000.16386 (vista_rtm.061101-2205)	28.35%
6.0.6000.16386 (vista_rtm.061101-2205)	1.98%
5.2.5721.5262 (WMP_11.090130-1421)	11.43%
5.2.5721.5262 (WMP_11.090130-1421)	0.22%
5.2.5721.5262 (WMP_11.090130-1421)	0.22%
5.2.5721.5262 (WMP_11.090130-1421)	0.22%
5.2.5721.5262 (WMP_11.090130-1421)	0.22%
5.2.5721.5262 (WMP_11.090130-1421)	0.22%
5.2.5721.5145 (WMP_11.061018-2006)	39.12%
5.2.5721.5145 (WMP_11.061018-2006)	0.44%
5.2.5721.5145 (WMP_11.061018-2006)	0.22%
5.2.5721.5145 (WMP_11.061018-2006)	0.22%
5.2.5721.5145 (WMP_11.061018-2006)	0.22%
5.2.5721.5145 (WMP_11.061018-2006)	0.22%
5.2.5721.5145 (WMP_11.061018-2006)	0.22%
5.2.5721.5145 (WMP_11.061018-2006)	0.22%
5.2.5705.5043 (WMP_11.060824-1905)	0.88%
5.2.5358.4827 (WMP_11.060509-2009)	0.22%
5.2.5358.4827 (WMP_11.060509-2009)	0.22%
5.2.5358.4827 (WMP_11.060509-2009)	0.22%
5.2.3810.3997 (srv03_sp2_rtm.070216-1710)	0.66%
5.2.3810.3911 built by: DNSRV(bld4act)	1.10%
5.2.3802.3802 built by: dnsrv(bld4act)	1.10%
5.2.3790.3646 built by: DNSRV(bld4act)	8.79%
5.2.3790.3646 (private/xpsp_mce.040810-0205)	1.54%

There are 27 versions of audiodev.dll in the wild, the latest version being 6.3.9600.16384 (winblue_rtm.130821-1623). The average file size is about 314.94 KB. Numerous variations of audiodev.dll have been installed with both Winstyle Moonlight and FL Studio 10.

audiodev.dll is a shell extension for Windows. Windows Explorer can be extended to support non-default functionality by means of Windows Shell Extensions, which are COM objects that plug the extended functionality into Windows Explorer. Shell extensions can be in the form of shell extension handlers, toolbars or even namespace extensions that allow certain folders (or even non-filesystem objects such as the images scanned by a scanner) to be presented as a special folder.