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What does "invalid procedure call" mean in IIS 7 with asp application and how to fix it?

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"Classic" asp, not asp.net, right? –  splattne Jun 11 '09 at 12:11
    
Yep, that's right! ;-) –  Sander Versluys Jun 12 '09 at 7:51

1 Answer 1

up vote 1 down vote accepted

Look at this article which explains some possible reasons:

Why do I get 'Invalid procedure call or argument'?

This often happens because you used a VBScript "friendly name" constant in place of its integer equivalent. Visual Basic understands these friendly names, such as FileSystemObject's 'forAppending' and 'forWriting' constants.

or

Another possible cause is trying to use a string operation (like Mid(), InStr(), Left() or Right()) on a NULL value.

or

Another possibility is that you are coming over from JavaScript, or otherwise think that string lengths are 0-based.

or

Still one more possibility is that you have unexpected characters in an FSO writeline call.


This Microsoft Support article could also be helpful:

"Invalid Procedure Call" Error Message or Access Violation When You Try to Assign User-Defined Type to Variant

When you assign a user-defined type to a Variant in a multithreaded environment (for example, in Microsoft COM+ or in Microsoft Internet Information Server [IIS]), you may receive an "Invalid Procedure Call" error message or an access violation (0xC0000005) in MSVBVM60.dll.

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