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Error when creating a second instance of a COM control

Posted on 2004-09-21
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Last Modified: 2013-11-26
Hi Experts,

I am developing a small COM control using Visual Basic 6.0. Everything works fine with the control until I try to make two simultaneously running instances of it. The first instance is created without any problems, however the second does give the following error:

Not enough storage is aviable to complete this operation

I have enough RAM and hard drive space available. I tried the same control with ASP and with a small Delphi application and I get the same error.

I suppose my control is somehow configured to run only a single instance, but I don't know how to control this. Can someone help?

Thanks!
TheAvenger
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Question by:TheAvenger
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7 Comments
 
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Accepted Solution

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fds_fatboy earned 250 total points
ID: 12110719
As a first guess:

Do you have any
        global variables?
        module level or static variables held in standard (not class) modules?
If so, be aware that all these variables will be shared between ALL instances of your control running. This can give unexpected results. If you have, you are almost certainly better off replacing them with other options - ask me if you need to know.

Otherwise - please post some code to let us see what is happening.
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Expert Comment

by:KarcOrigin
ID: 12110740
What is your OS and which service pack you have installed?


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Author Comment

by:TheAvenger
ID: 12110793
The OS is Windows XP, SP 1 and SP2 (two machines).

I have some global variables. I will try to move them in a class and come back with a post after it.
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Expert Comment

by:EDDYKT
ID: 12111130
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Author Comment

by:TheAvenger
ID: 12111357
@EDDYKT: Unfortunately not
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Expert Comment

by:EDDYKT
ID: 12111540
What do you do inside your COM object? Database accessing?


Is your COM object ocx or dll?
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Author Comment

by:TheAvenger
ID: 12112824
It was a problem with the log I was using - it was using a file and probably locked it. I now use the Event Log of NT and it works just fine.
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