bts2013 R2 - application pool


can tell me  when and/or why set application pool biztalk iis receive locations run under 32 bit?(only reason can find moment bam portal 'free' separate app pool that....)

or leave app pool on 64 bit ?


kind regards isabelledc

it shortcoming till iis6 cannot run worker processes in both 32-bit mode , 64 bit mode. either 1 of them possible.

but, in iis7, feature introduced can run 32-bit , 64-bit worker processes simultaneously. setting “enable 32-bit applications” when set true allows application pool spawn in 32-bit mode aswell.

feature introduced because on 64-bit windows, 32-bit processes cannot load 64-bit dlls, , 64-bit processes cannot load 32-bit dlls. if plan run 32-bit applications on 64-bit windows, must configure iis create 32-bit worker processes. so, depends on application hosted in iis.

imo, biztalk applications build run under "any cpu" configuration doesn't matters if run applications under 32 bit worker process or 64 bit.

bam portal runs on 32-bit mode reason best known microsoft.

note: have seen many post recommend configure iis use 32-bit worker processes on 64-bit windows. not compatibility better native 64-bit, performance , memory consumption better.

refer: 32-bit mode worker processes & app pool memory drastically different 32-64 bit


rachit sikroria (microsoft azure mvp)



BizTalk Server  >  BizTalk Server General



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