pub unsafe extern "system" fn CryptMsgVerifyCountersignatureEncodedEx(
hcryptprov: HCRYPTPROV_LEGACY,
dwencodingtype: u32,
pbsignerinfo: *const u8,
cbsignerinfo: u32,
pbsignerinfocountersignature: *const u8,
cbsignerinfocountersignature: u32,
dwsignertype: u32,
pvsigner: *const c_void,
dwflags: u32,
pvextra: *mut c_void,
) -> BOOL