Operation system: Windows 98SE, ME, NT 4, 2000, XP, 2003, Vista, 2008, 2008 R2, 7, 8, 8.1, 10.
| Description | File | Version | Size | Time | Language |
| Installation program for XP, 2003, Vista, 2008, 2008 R2, 7, 8, 8.1, 10, includes x64 editions | wso.exe | 1.1.17.1 | 10 183 828 bytes (9,71 MB) | 2015-08-20 | English, Russian |
| WSO for NT 4, Windows 2000, XP (Pre SP3) | wso2000XP.exe | 1.1.17.1 | 10 153 543 bytes (9,68 MB) | 2015-08-20 | English, Russian |
| Installation program for XP, 2003, Vista, 2008, 2008 R2, 7, 8, 8.1, 10, includes x64 editions (x64 and Itanium) | wsoall.exe | 1.1.17.1 | 11 140 937 bytes (10,62 MB) | 2015-08-20 | English, Russian |
| WSO (zip archive) for XP, 2003, Vista, 2008, 2008 R2, 7, 8, 8.1, 10, includes x64 editions (x64 and Itanium), use regsvr32.exe wso.dll, regsvr32.exe x64\wso.dll | wso.zip | 1.1.17.1 | 12 377 719 bytes (11,80 MB) | 2015-08-20 | English, Russian |
| WSO for Windows 98, ME (1.1.13) | wso98me.exe | 1.1.17.1 | 5 752 202 bytes (5,49 MB) | 2015-08-20 | English, Russian |
| md5 | md5.txt | 1.1.17.1 | 368 bytes (0,00 MB) | 2015-08-20 | |
| Installation program for XP, 2003, Vista, 2008, 2008 R2, 7, 8, 8.1, 10, 11, includes x64 editions (x64) | wso.exe | 2.0 | 17 827 009 bytes (17,00 MB) | 2026-03-09 | English, Russian |
| WSO (zip archive) for XP, 2003, Vista, 2008, 2008 R2, 7, 8, 8.1, 10, 11, includes x64 editions (x64), use regsvr32.exe wso.dll, regsvr32.exe x64\wso.dll | wso.zip | 2.0 | 20 811 881 bytes (19,85 MB) | 2026-03-09 | English, Russian |
| WSO 2.0 additional resources | wsoplus.zip | 2.0 | 24 538 227 bytes (23,40 MB) | 2026-03-09 | English, Russian |
| md5 | md5.txt | 2.0 | 145 bytes (0,00 MB) | 2026-03-09 | |