For what it is worth I have run various versions of TeXstudio up to 2.6.4 on 64-bit Windows 7 and have not encountered any 32-bit 64-bit conflict. My antivirus software (currently AVG free 2014) does not report any problems when installing TeXstudio. It has reported false positives with other software but not with LaTeX related software. 

Best Regards

On 28 October 2013 12:04, Jerry <> wrote:
I used the "NET" installer and installed the full 64bit package from
MiKTeX. That went flawlessly. Next I preceded to install
"Silk-Subversion-1.8.3-1-64". Again no problems.

Now, I started to download "texstudio_264_32.exe" from Source Forge and
received this warning message:

"Texstudio264_win32.exe is not commonly downloaded and could harm your
computer." I clicked on the <continue> button.

When I attempted to run the program, I was greeted with the huge pop-up

"Windows protected your PC. Windows SmartScreen prevented an
unrecognized app from starting. Running this app might put your PC at


Publisher: Unknown Publisher
App:       texstudio264_win32.exe"

I clicked on "Run Anyway" and everything seems to have installed
correctly. I have not had the time to move my data from my old PC to
this one yet so I cannot say for sure if everything will run correctly.
I assume it will though as long as I don't get an OS mismatch error
between the 64bit SVN client and the 32bit texstudio. Again, I have
seen that sort of problem with MySQL clients and servers. Hopefully, it
will not appear here.

Jerry ♔

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John C Frain, Ph.D.
Trinity College Dublin
Dublin 2