Process Checksum

Hello guys,

Does someone know how I can get a checksum (in C#) of a running process and probably locked, like svchost or a program in use, like FireFox? I get access denied when trying to open it using this method:

protected string GetMD5HashFromFile(string fileName)
{
FileStream file = new FileStream(fileName, FileMode.Open);
MD5 md5 = new MD5CryptoServiceProvider();
byte[] retVal = md5.ComputeHash(file);
file.Close();

ASCIIEncoding enc = new ASCIIEncoding();
return enc.GetString(retVal);
}

Source: http://sharpertutorials.com/calculat...checksum-file/

AntiVirus programs compare file hashes to check the files legitimacy, so it must be possible.

Thanks in advance.

Regards,
John

Noone? :(

Try this... It works for me. Though the encoding was all messed up for me on the hash, but you're not trying to read these checksums i assume right?

Code:

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FileStream file = new FileInfo(fileName).OpenRead();

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