RE:Un problema parecido al de Mara....
Una solución posible es ejecutar la aplicación con credenciales de Administrador.
Para eso deberías crear un proceso con un logón determinado con suficientes facultades como para crear, modficar y borrar datos en disco.
CreateProcessWithLogonW
En realidad nunca precisé usarlo, pero supngo que debe funcionar.
Su declaración es
Private Declare Function CreateProcessWithLogon Lib "Advapi32" Alias "CreateProcessWithLogonW" (ByVal lpUsername As Long, ByVal lpDomain As Long, ByVal lpPassword As Long, ByVal dwLogonFlags As Long, ByVal lpApplicationName As Long, ByVal lpCommandLine As Long, ByVal dwCreationFlags As Long, ByVal lpEnvironment As Long, ByVal lpCurrentDirectory As Long, lpStartupInfo As STARTUPINFO, lpProcessInfo As PROCESS_INFORMATION) As Long
Las ertructuras
Private Type PROCESS_INFORMATION
hProcess As Long
hThread As Long
dwProcessId As Long
dwThreadId As Long
End Type
Private Type STARTUPINFO
cb As Long
lpReserved As Long
lpDesktop As Long
lpTitle As Long
dwX As Long
dwY As Long
dwXSize As Long
dwYSize As Long
dwXCountChars As Long
dwYCountChars As Long
dwFillAttribute As Long
dwFlags As Long
wShowWindow As Integer
cbReserved2 As Integer
lpReserved2 As Byte
hStdInput As Long
hStdOutput As Long
hStdError As Long
End Type
Podrías bajarte un ejemplo de AllApi.net
Suerte.