https://communities.sas.com/t5/SAS-Enterprise-Guide/EG4-1-AND-EG4-2/m-p/54385#M5754 Hi John, yes, that should work just fine. I've got EG 4.1 and EG 4.2 running on my laptop right now, and both are using SAS 9.2 Phase 2 to execute code behind the scenes. Other folks may have more info about any "gotchas" of doing this.<BR /> <BR /> I definitely would install SAS 9.2 Phase 2 along with EG 4.2. I was running SAS 9.2 Phase 1 with EG 4.2 for a while and had performance issues. I don't know if that problem is universal, but I'm much happier with SAS 9.2 Phase 2 running. Wed, 15 Jul 2009 11:07:37 GMT RichardH_sas 2009-07-15T11:07:37Z https://communities.sas.com/t5/SAS-Enterprise-Guide/EG4-1-AND-EG4-2/m-p/54384#M5753 I am our tester for SAS. I am currently running SAS9.2 (First Phase). We just got the installation disks for Phase 2, which includes EG4.2. Can I install EG4.2 without uninstalling EG4.1? (Assume I am installing PHASE 2 of SAS9.2, if that makes a difference.) Tue, 14 Jul 2009 14:33:41 GMT https://communities.sas.com/t5/SAS-Enterprise-Guide/EG4-1-AND-EG4-2/m-p/54384#M5753 JohnH 2009-07-14T14:33:41Z https://communities.sas.com/t5/SAS-Enterprise-Guide/EG4-1-AND-EG4-2/m-p/54385#M5754 Hi John, yes, that should work just fine. I've got EG 4.1 and EG 4.2 running on my laptop right now, and both are using SAS 9.2 Phase 2 to execute code behind the scenes. Other folks may have more info about any "gotchas" of doing this.<BR /> <BR /> I definitely would install SAS 9.2 Phase 2 along with EG 4.2. I was running SAS 9.2 Phase 1 with EG 4.2 for a while and had performance issues. I don't know if that problem is universal, but I'm much happier with SAS 9.2 Phase 2 running. Wed, 15 Jul 2009 11:07:37 GMT https://communities.sas.com/t5/SAS-Enterprise-Guide/EG4-1-AND-EG4-2/m-p/54385#M5754 RichardH_sas 2009-07-15T11:07:37Z