Excel VBA: Make InStr find whole string, not part of it - vba

Question

I'm trying to make a login/register system.
This is the registration UserForm.
Private Sub regReg_Click()
Dim TextFile As Integer
Dim FilePath As String
If regAParole.Text = "aparole" Then
FilePath = ThisWorkbook.Path & "\accounts.txt"
TextFile = FreeFile
Open FilePath For Append As #1
Print #TextFile, regID; regAmats; regParole
Close TextFile
MsgBox ("Registracija veiksmiga.")
Unload Registracija
Else
MsgBox ("Nepareiza administratora parole.")
End If
End Sub
The "aparole" thing is basically just a keyword to enter in a field so only administrators can create new accounts.
accounts.txt content looks like:
1DirectorPassword (ID+jobposition+password)
This is the authentication:
Private Sub logAuth_Click()
Dim TextFile As Integer
Dim FilePath As String
Dim FileContent As String
Dim find As String
Dim result As Integer
find = logID & logAmats & logParole
FilePath = ThisWorkbook.Path & "\accounts.txt"
TextFile = FreeFile
Open FilePath For Input As TextFile
FileContent = Input(LOF(TextFile), TextFile)
result = InStr(FileContent, find)
If result >= 1 Then
MsgBox ("Autorizacija veiksmiga!") ' Success
Unload Autorizacija
End If
Basically when logging in I search within the accounts.txt for the string combo (ID+jobposition+password) which I use when registering. So in general the approach works, but:
If I enter everything perfectly matched = works great
If I enter the password half of it, like in a format of = 1DirectorPass it still works, so basically how can I tell to only search for the whole string and not parts of it?
I think the issue lies within InStr...

Answer 1

You could test for the newline markers in your file content, like this:
result = InStr(vbCrLf & FileContent, vbCrLf & find & vbCrLf)
This will only match complete lines. An extra newline is added before the file content so also the first line can be matched. At the end of the file content you would already have a vbCrLf character, because Print is supposed to add that.