It seems that TuneBrowser is waiting for the response of network API for “\\NAS1\music\SLAYERS MEGUMIXXX／林原めぐみ”.
Call stack is:
ntdll.dll!NtCreateFile()
KERNELBASE.dll!CreateFileInternal()
KERNELBASE.dll!CreateFileW()
ntlanman.dll!GetNetworkPhysicalPath(unsigned short const *,unsigned short * *)
ntlanman.dll!ShareExists(unsigned short *,unsigned long,int *,unsigned long *,unsigned short * *)
ntlanman.dll!NPDfsLmGetResourceInformation(struct _NETRESOURCEW *,void *,unsigned long *,unsigned short * *)
ntlanman.dll!NPGetResourceInformation()
mpr.dll!CGetResourceInformation::TestProvider(struct _PROVIDER const *)
mpr.dll!CRoutedOperation::GetResult(void)
mpr.dll!CMprOperation::Perform(void)
mpr.dll!CRoutedOperation::Perform(int)
mpr.dll!WNetGetResourceInformationW()
windows.storage.dll!SHWNetGetResourceInformationAlloc()
windows.storage.dll!CNetFolder::_GetResourceInformationAlloc(struct _NETRESOURCEW const *,struct _NETRESOURCEW * *,unsigned long *,unsigned short * *,int)
windows.storage.dll!CNetFolder::_ParseUNCName(struct HWND__ *,struct IBindCtx *,unsigned short const *,unsigned short const *,int,struct _ITEMIDLIST_RELATIVE * *,unsigned long *)
windows.storage.dll!CNetFolder::ParseDisplayName(struct HWND__ *,struct IBindCtx *,unsigned short *,unsigned long *,struct _ITEMIDLIST_RELATIVE * *,unsigned long *)
windows.storage.dll!CRegFolder::ParseDisplayName(struct HWND__ *,struct IBindCtx *,unsigned short *,unsigned long *,struct _ITEMIDLIST_RELATIVE * *,unsigned long *)
NetworkExplorer.dll!CNetworkExplorerFolder::_IsValidServer(struct HWND__ *,struct IBindCtx *,unsigned short const *,unsigned short * *,unsigned int *)
NetworkExplorer.dll!CNetworkExplorerFolder::ParseDisplayName(struct HWND__ *,struct IBindCtx *,unsigned short *,unsigned long *,struct _ITEMIDLIST_RELATIVE * *,unsigned long *)
windows.storage.dll!CRegFolder::ParseDisplayName(struct HWND__ *,struct IBindCtx *,unsigned short *,unsigned long *,struct _ITEMIDLIST_RELATIVE * *,unsigned long *)
windows.storage.dll!CDesktopFolder::ParseDisplayName()
windows.storage.dll!CRegFolder::ParseDisplayName(struct HWND__ *,struct IBindCtx *,unsigned short *,unsigned long *,struct _ITEMIDLIST_RELATIVE * *,unsigned long *)