Mutex methods used to prevent the program running on many occasions, App.PreIntance only the current directory to determine whether there are multiple instances running, the program can copy the exe into any directory, but only to run a case in point.

frmMain.frm
Module1.bas
防止运行多实例.csi
防止运行多实例.exe
防止运行多实例.vbp
防止运行多实例.vbw

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