I'm getting the same problem - tried single/double quotes on the DataSource string, escaping the quotes on the install properties but it still leaves semicolons as blank spaces after passing the arguments to the msi.It works fine from the command lin...
I'm having the same problem on Windows 7 x64. I've set the platform to 32-bit and created an AppPool with Enable32 Bit Applications set to true too.Does anyone have any idea how to fix this?