Classic ASP : C0000005 Error on execution

Question

I\'m trying to execute classic ASP pages on a windows 2008 64 bit R2 box.

Initially the problem was with registering dlls : That\'s now fixed. Register DLL file on W

Answer 1

I'm adding this answer here, though I realise this is very much later than when the question was first answered. I'm putting the answer here in case it saves anyone else the hassle I've just been through.

I too was getting this error on my ASP page after I had re-installed Windows 10. Previously on my localhost IIS setup, the same page did not error. However - now it did - with the following error:

Active Server Pages error 'ASP 0115' Unexpected error index.asp

A trappable error (C0000005) occurred in an external object. The script cannot continue running.

I tried lots of things to try and sort it, such as:

1. Reinstalling Windows 10 again
2. Reinstalling IIS on the new Windows 10 installation
3. Trying all sorts of combinations of versions of MySQL and the ODBC Connector
4. Checking for missing files in Windows Process Monitor as per one of the answers on this page
5. Messing about with Application Pools
6. Messing about with lots of versions of Microsoft Visual C++ Redistributables

My problem was with an SQL Insert - when it ran, I got the error.

This is a cut down version of it:

sql = ""
sql = sql & " INSERT INTO my_table ( "
sql = sql & " card_sender,  "
sql = sql & " senders_email,  "
sql = sql & " recipients_email,  "
sql = sql & " card_body,  "
sql = sql & " session_id, "
sql = sql & " replyID) VALUES ( "
sql = sql & " ?,  "
sql = sql & " ?,  "
sql = sql & " ?,  "
sql = sql & " ?,  "
sql = sql & " ?,  "
sql = sql & " ?)  "

Set stmt = Server.CreateObject("ADODB.Command")
stmt.ActiveConnection = oConn
stmt.Prepared = true
stmt.commandtext = sql

stmt.Parameters.Append stmt.CreateParameter("@001_card_sender", adVarChar, adParamInput, 255, card_sender)
stmt.Parameters.Append stmt.CreateParameter("@002_senders_email", adVarChar, adParamInput, 255, senders_email)
stmt.Parameters.Append stmt.CreateParameter("@003_recipients_email", adVarChar, adParamInput, 255, recipients_email)
stmt.Parameters.Append stmt.CreateParameter("@004_card_body", adLongVarChar, adParamInput, 256665, card_body)
stmt.Parameters.Append stmt.CreateParameter("@sessionsessionID", adVarChar, adParamInput, 255, session.sessionID)
stmt.Parameters.Append stmt.CreateParameter("@replyID", adVarChar, adParamInput, 255, session("replyID"))

stmt.Execute
Set stmt = Nothing

Via a process of building up the SQL and finding which line triggered the error, I found this line caused the problem:

stmt.Parameters.Append stmt.CreateParameter("@replyID", adVarChar, adParamInput, 255, session("replyID"))

In my example, the session("replyID") value was not set, and that triggered the error.

When I changed the code to check if the session variable was set, it fixed the issue:

...
foo = session("replyID")
if foo = "" then foo = 1
...
stmt0003.Parameters.Append stmt0003.CreateParameter("@replyID", adVarChar, adParamInput, 255, foo)

More testing confirmed that the error would happen for any variable which was null, so I had to add in an if statement for every variable and set it to something if it was null, to prevent these errors which I didn't used to get on a previous Windows 10 installation on the same PC.

After spending about a day working on it, it was a relief to get to the bottom of it.