GAMS Distribution 27.1.0 Announcement

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bussieck
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GAMS Distribution 27.1.0 Announcement

Post by bussieck » 3 weeks ago

Hi GAMS Users,

We started distributing GAMS Release 27.1.0 on April 24, 2019.

You can download the software from https://www.gams.com/download/

Here are the release notes: https://www.gams.com/latest/docs/RN_27.html

Your GAMS Team
www.gams.com

dlmccollum
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Re: GAMS Distribution 27.1.0 Announcement

Post by dlmccollum » 1 week ago

The file ‘gdxxrw.exe’ (located in my directory ‘C:\GAMS\win64\27.1’) mysteriously disappears approximately one minute after the installation finishes. This has happened to me five times now (after uninstalling and reinstalling). I am working with the MS Windows 64 bit version on a brand-new machine (with no previous versions of GAMS installed).

The problem does not occur when installing release 26.1.0.

I have sent an email to support@gams.com with additional detail.

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dirkse
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Re: GAMS Distribution 27.1.0 Announcement

Post by dirkse » 1 week ago

Sounds like a virus checker to me.

The solution in this case is to first update your virus checker and see if that helps - maybe somebody reported this already. If not, you should report this false positive to the provider of your virus checker. If they are any good, they will update some virus definition files and the problem will be solved.

In the meantime, consider turning off your virus checker. Also, you can sometimes declare a directory off-limits to the virus checker, e.g. C:\gams\win64.

-Steve

dlmccollum
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Re: GAMS Distribution 27.1.0 Announcement

Post by dlmccollum » 1 week ago

Spot on, Steve. My antivirus software is CylancePROTECT. It quarantines only this one file. And interestingly, it does not do it during installations of other GAMS versions (e.g., 26.1).

Good idea to let the company who makes the antivirus software know about this false positive as well.

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