Microsoft Text-to-Speech Engine (English). The most popular version of this product among our users is 4.0. The names of program executable files are BTWUIExt.exe, NetProj.exe, OSA.EXE, rundll32.exe and SIGNINOPTIONS.EXE. Works with oqy, rqy, xla, xlk, xll, xlt, dif, csv, dqy, slk, iqy, xlshtml and xlthtml file types. The product will soon be reviewed by our informers.You can check Microsoft .NET Framework, Microsoft Speech SDK, Text To MP3 Converter Software and other related programs like Microsoft Office Proofing Tools at the "download" section.