вот что говорит mem
Memory Type Total = Used + Free
_______________________________________________________________
Conventional 640 K 311 K 329 K
Upper 0 K 0 K 0 K
Reserved 0 K 0 K 0 K
Extended (XMS) 65 535 K 1199 K 64 366 K
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Total Memory 66 175 K 1510 K 64 665 K
Total under 1 Mb 640 K 311 K 329 K
Total Expanded (EMS) 65 824
Free Expanded (EMS) 64 336
Largest executable program sice 326 K
Largest free upper memory block 0 K
MS-dos is resident in the high memory area.
Может чем поможет эта инфа для консультации