Important Note for FoxPro Extended Edition:



FoxPro Extened Edition



Important Note for FoxPro Extended Edition:

To correct possible FoxPro's Dos Extender's "Extended Memory Hog" Problems, where Fox's DOS Extender apparently takes ALL of your memory instead of only allocating extended/expanded memory when needed and freeing it when finished , the following undocumented environmental setting may be useful when placed in your AUTOEXEC.BAT, especially when it is necessary to virtually display large document images (over 1 Meg. in size):

For Example, on a PC with 16 Meg of Memory, the following settings are reasonable and useful, when added to your AUTOEXEC.BAT:



SET FOXPROX=-MAXXMSMEM 2000000 -MAXVCPIMEM 2000000



-MAXXMSMEM=Amount in Bytes

-MAXVCPIMEM=Amount in Bytes



NOTE: Do not leave out the "X" in the SET FOXPROX command, as in the example, below:



**NO!** SET FOXPRO=-MAXXMSMEM 2000000 -MAXVCPIMEM 2000000 **NO!**




FoxPro Standard Edition will load, causing possible memory and video display problems. Problems from the forced unintentional loading of Standard Edition when the Extended Edition is expected are frustrating & hard to diagnose. Problems may include any functions requiring expanded

The above environmental settings should never be less than 1000000 for high performance Fox (extended edition) applications. While these settings do not affect Fox Pro itself, they apparently do limit Foxpro's DOS Extender (FOXPROX) from using more than 2Meg XMS (extended memory) and VCPI (expanded memory) to 2 Meg. Unless the settings are implemented, applications other than Fox Pro itself will be denied use of ANY extended or expanded memory.






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