>When i run the vfp 6.0 from start menu or desktop shortcut i get the message "There is not enough memory to run this application".when i click on the OK button, i get the message "performed illegal operation" and the details tab shows error in Kernel.dll.Sytem resoruces show 80 % as free.I tried reinstall,uninstall and then install with the same results.I reinstalled win 98 also with the same results.Could it be virus or is it due to some other problem

First, try to delete foxuser.dbf. If it doesn't help, try to start VFP with -A command line switch, which forces VFP to ignore the default configuration file and Windows registry settings.