1. Extract SP4
2. Copy `..SP4\x86\other\sqlredis.exe` to `..\originalinstallpath\x86\other`
`(this avoid mdac insall freezing)`
3. Create this folder structure (any place):
– `Microsoft SQL Server\80\Tools\Binn`
– `Microsoft SQL Server\MSSQL\Binn`
6. Find out sqlunirl.dll on `SP4` path and copy to **Binn** folder above
7. Copy `dll` files on `..SP4\x86\setup` to `Microsoft SQL Server\MSSQL\Binn` (folder above)
8. Copy folder structure (created on step 3) to `C:\Program Files (x86)`
-Give full access to user logged to **Microsoft SQL Server** folder
9. Change install compatiblity `..\originalinstallpath\x86\setup\setupsql.exe`
– `XP SP2`
– `Run as administrator`