>MaybeODBC driver dlls silent install Thread #813720 can help?
>>Please, does anyone has a tested inno setup script... To allow install MySQL's ODBC together with an application...

Here is the inno's script to install mysql odbc:

[Files]
Source: E:\mysql-odbc\lib\myodbc3.dll; DestDir: {sys}; flags: onlyifdoesntexist
Source: E:\mysql-odbc\lib\myodbc3.lib; DestDir: {sys}; flags: onlyifdoesntexist
Source: E:\mysql-odbc\lib\myodbc3s.dll; DestDir: {sys}; flags: onlyifdoesntexist
Source: E:\mysql-odbc\lib\myodbc3s.lib; DestDir: {sys}; flags: onlyifdoesntexist
Source: E:\mysql-odbc\bin\myodbc3i.exe; DestDir: {sys}; flags: onlyifdoesntexist
Source: E:\mysql-odbc\bin\myodbc3m.exe; DestDir: {sys}; flags: onlyifdoesntexist
Source: E:\mysql-odbc\bin\myodbc3c.exe; DestDir: {sys}; flags: onlyifdoesntexist

[Run]
; run the registration process to add the connector to the ODBC manager
Filename: {sys}\myodbc3i; Parameters: "-a -d -t""MySQL ODBC 3.51 Driver;DRIVER=myodbc3.dll;SETUP=myodbc3s.dll"""

HTH anyone in the future

Feliz Ano Novo meus amigos virtuais