32 bit client package not working properly

we installed SEPM 12.1.6 in windows 2003 server,

while creating packages for windows 64 bit its creating properly and the resultant setup file size will be around 700MB.

but for windows 32 bit, while trying to creating package. its creating successfuly but the setup file size will be only 64MB.

while crearting 64 bit setup file and 32bit setup file i am selecting the same settings and features.

can any one help me out on this