You're putting a band-aid on a bigger problem. The band-aid is fine, but should only be temporary. You should really look at your entire build methodology and look at Continuous Integration.

- Local builds should be per developer and should only affect the .exe in the development environment
- Build servers should build and test your application, then report back the results.
- Once results are satisfactory and pass all tests with all new functionality, you can build a release version.

>When I build a new exe I'd like to automatically back up the previous copy. In case things go pear shaped and I have to revert.
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>I do it manually but thats not a great way to go.
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>Whats the best way to do this.
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>This is a maintenance only sort of system so I'm looking for the minimalist approach.
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>Thanks