SoftImage 3D 2 in 1 - March
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SoftImage 3D v3.9.2 (SI3D Base, SI3D Extreme configurations)
run SI3D.3.9.2\NT\X86\setup.exe

SoftImage XSI v1.5 includes PICLIB and XSITOUR
run XSI.V.1.5\NT\setup.exe