有会VB高手帮我看看下面这段代码是什么意思吗？

sCAExchangeCert=FormatBigString(sCertificate, "sCAExchange=sCAExchange & ")
'-----------------------------------------------------------------
' Format the big string as a concatenated VB string, breaking at the embedded newlines
Function FormatBigString(sSource, sLinePrefix)
Dim sResult, bCharsLeft, nStartChar, nStopChar, chQuote
sResult=""
chQuote=chr(34)
bCharsLeft=True
nStopChar=1
While (bCharsLeft)
nStartChar=nStopChar
nStopChar=InStr(nStopChar, sSource, vbNewLine)
If (nStopChar>0) Then
sResult=sResult & sLinePrefix & chQuote & Mid(sSource, nStartChar, nStopChar-nStartChar) & chQuote & " & vbNewLine"
If (nStopChar>=Len(sSource)-Len(vbNewLine)) Then
bCharsLeft=False
End If
Else
bCharsLeft=False
End if
sResult=sResult & vbNewLine
nStopChar=nStopChar+Len(vbNewLine)
Wend
FormatBigString=sResult
End Function
贴吧发帖弄不好代码格式，有会的麻烦费点时间帮我看看
可以的话帮我写的注释，如果能翻译成C#就更好了