https://community.hpe.com/t5/operating-system-hp-ux/multiple-compiler-versions/m-p/2798570#M81437 I don't see any reason why you couldn't, but it's dangerous because you are relying on developers to pick the correct compiler for the right client. It will also be slightly difficult to get the three versions installed, without them walking all over each other, and library management will be a bear. <BR /><BR />live free or die<BR />harry Tue, 03 Sep 2002 10:55:40 GMT harry d brown jr 2002-09-03T10:55:40Z https://community.hpe.com/t5/operating-system-hp-ux/multiple-compiler-versions/m-p/2798569#M81436 HP UX 11.00<BR />Is it possible to install multiple versions of aCC. We have a requirement for version 3.15 &amp; 3.27 &amp; 3.33 Tue, 03 Sep 2002 08:42:38 GMT https://community.hpe.com/t5/operating-system-hp-ux/multiple-compiler-versions/m-p/2798569#M81436 Paul Clayton 2002-09-03T08:42:38Z https://community.hpe.com/t5/operating-system-hp-ux/multiple-compiler-versions/m-p/2798570#M81437 I don't see any reason why you couldn't, but it's dangerous because you are relying on developers to pick the correct compiler for the right client. It will also be slightly difficult to get the three versions installed, without them walking all over each other, and library management will be a bear. <BR /><BR />live free or die<BR />harry Tue, 03 Sep 2002 10:55:40 GMT https://community.hpe.com/t5/operating-system-hp-ux/multiple-compiler-versions/m-p/2798570#M81437 harry d brown jr 2002-09-03T10:55:40Z