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Application incompatible in windows7 64 bit machine

Question
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Hi,
I have an application which works fine in windows 32 bit environment.
It also works in windows server 2008 64 bit environmetn. But the application is not working in windows 7 64 bit environment.
The installation of the application works fine with no errors but when i launch the application, it throws a msg box showing "Attempeted an unsupported operation "
clicking ok button several times launches the application with nothing in it... eventually the process ahs to be killed via task manger.
can someone help me in resolving this.
I tried, Troubleshoot compatibity option( which says the application is incompatible) but it works in some windows 7 64 bit machine also.
Sometimes, it throws error like, the application has stopped working with an error saying
roblem Event Name: BEX
Application Name: aaa.exe
Application Version: 2.0.0.1
Application Timestamp: 50cee5eb
Fault Module Name: MSVCR90.dll
Fault Module Version: 9.0.30729.4940
Fault Module Timestamp: 4ca2ef57
Exception Offset: 0002fc96
Exception Code: c0000417
Exception Data: 00000000
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 1033
Additional Information 1: 5764
Additional Information 2: 57644a97c584465c7d62c7a5ee77377c
Additional Information 3: dae9
Additional Information 4: dae9cbf088fd98d723fe22f294c92ad8 This error comes in one of the machines, the other machine shows no error but the application fails to launch. Any help will be very usefulWednesday, April 24, 2013 7:35 AM
Answers
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Installed .net framework 3.5 in the machine..... now the application launched without errors..!!! even after uninstalling .net framework... now the app works!!!!!
shakthi
- Marked as answer by shakthi saravanan Sunday, April 28, 2013 12:56 PM
Sunday, April 28, 2013 12:56 PM
All replies
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If it's working on some 64-bit Win7 and not others, I would suggest looking at what versions of C++ Redistributable are on those machines and ensure they are on all machines that require this application...
PLEASE MARK ANY ANSWERS TO HELP OTHERS Blog: rorymon.com Twitter: @Rorymon
Wednesday, April 24, 2013 5:47 PM -
Thank you for ur help Rorymon !!
I tried even with installing all the redistributables available. Nothing is working out.
The developer says she rund the code in IDE with target machine as x86. Will that be a problem for the application to not work in 64 bit machines ?
Thanks again !
shakthi
Thursday, April 25, 2013 1:09 AM -
Installed .net framework 3.5 in the machine..... now the application launched without errors..!!! even after uninstalling .net framework... now the app works!!!!!
shakthi
- Marked as answer by shakthi saravanan Sunday, April 28, 2013 12:56 PM
Sunday, April 28, 2013 12:56 PM -