>In a CRC32() class, I need to read a file by the use of FileStream() in such an approach:
>
>

>        ' This is the main method to call
>        Public Function GetCRC() As Boolean
>            Dim loStream As Stream
>            loStream = New FileStream(cFileName, FileMode.Open, FileAccess.Read, FileShare.Read, 8192)
>            nCRC32 = GetCrc32(loStream)
>            loStream.Close()
>            Return True
>        End Function
>

>
>However, occasionnaly, the FileStream() method cannot access the file. It returns this message:
>
>"The process cannot access the file ... because it is being used by another process."
>
>Is there any way to avoid that? Or, is there a way to read the file even if it is being used by another process? Because, even if I implement a retry mechanism, I am not sure in such a context if that would work.

How is the file being created? If you're creating it, make sure you're explicitly closing it as well. How is this code being triggered?

Also, I'd suggest putting the Close() in a Finally section of a Try/Catch.