>I want to install MTS to Windows NT 4.0 (SP 3) from Windows NT Option Pack 4 (CD #2 in Visual Studio 6.0). After I double-click the 'Setup.exe' a message pop up 'Cannot detect OS type'.
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>I try to install it to another machine and it is working fine. What wrong with my computer ? Any idea ? Thanks.
>
>Barata

Try installing NT SP5. I don't know if it will work, but it's worth a try.