>>Hi everyone,
>>
>>I'm trying to find out, where did I set this variable and how can I change it to be nothing? While ago I set it to include some general VFP.h file, which is placed in c:\Program Files\... on my computer. It was not a good decision.
>>
>>I could not find it in Tools\Options...
>
>It's there... File Locations Tab -> Default Include File

Since the time difference between your responce and Sergey's is 3 sec., I would mark both answers as help, though both are the solutions. And in the meantime I resolved this problem by putting _include='' in the command window. :)