Hi, We are running half of our PCs under Windows 64b with SAS 9.3.2 32 bits: the reason is mainly : maintaining compatibility between pc yet under XP with sas 9.2.3 and high users reserve against conversion of sas catalogs to 64bits (even if the cntlin cntlout options of proc format could minimize the problem). In pratice, you have to exchange with excel 32 bits as previous in place of using special engines in case of a use of a 64bits version of SAS. The memory is , a contrario, limited for SAS 32bits on a 64bits Windows 7 system (in practice less than 3G) in place of more memory ressources (thus power) under a sas version 64bits.. I agree with Paige: consult SAS people relating your task force for a migration. Here, i am alone. Andre
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