My program works fine on XP, but hangs on Windows 7

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Hello everyone!

I would like to start by saying thanks to everyone who takes some time to view this thread and try to help.

I have written an application in C++ that uses WIN32 API and ADO to query a database and display results in a listview.

Everything works fine, when I test it on Windows XP, but my application starts to "hang" when I test it on Windows 7. I have to "kill" it, or else it seems it would be stuck forever.

I suspect that DEP or some UAC setting is the culprit here, but I can't figure out what to do.
When I try to set DEP to allow my program to run, it reports that it can't be done.

A small note that might help:

I have copied the code for querying the database from my earlier project, which also had to query the database, and was written in C++ using WIN32 API and ADO.
That project works well on both Windows XP and Windows 7.

I work in MS Visual Studio Express 2008, on Windows XP, in C++, using WIN32 API.

If any other information is required ( source code or something similar ), please ask for it, I will more than gladly supply it.

Posted 1-Jun-13 20:03pm

MyOldAccount

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Andreas Gieriet · Accepted Answer · 2013-06-01T20:23:00

Solution 1

Have a look at Porting C++ Application From XP to Vista/7[^] for some hints to analyze compatibility issues.

Try running as administrator. If that helps, you probably write into program files sub folders: you need to refactor that code to store your user data to some other location.

Maybe this link also helps identify potential issues: Application Compatibility[^].

Cheers
Andi

Posted 1-Jun-13 20:23pm

Andreas Gieriet

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MyOldAccount 2-Jun-13 20:16pm

Well, I did hardcoded the path for my database in connection string like this:
" C:\\ MyBase.accdb "
but, after changing it to read from my USB ( F:\\ ... ) it worked !
I will try to hardcode it to Desktop or somewhere similar and report my results.

Andreas Gieriet 2-Jun-13 20:50pm

Have a look at Where Should I Store my Data and Configuration Files if I Target Multiple OS Versions? and can not find the "program data" folder..
Check out for the %ProgramData% folder to store your DB.
Cheers
Andi

MyOldAccount 2-Jun-13 23:21pm

I have changed the string to "D:\\..." and it works!
Thank you for the links, they "lit the light bulb"!
This solution is officially accepted!