# Change VersionInfo of existing DLL

**URL:** https://www.finalbuilder.com/forums/t/change-versioninfo-of-existing-dll/994
**Category:** Discussion
**Created:** [October 3, 2008, 12:31pm UTC](https://www.finalbuilder.com/forums/t/change-versioninfo-of-existing-dll/994 "2008-10-03T12:31:51Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![b.bruno](https://www.finalbuilder.com/forums/user_avatar/www.finalbuilder.com/b.bruno/32/101_2.png) [@b.bruno](https://www.finalbuilder.com/forums/u/b.bruno)
#### Post date: [October 3, 2008, 12:31pm UTC](https://www.finalbuilder.com/forums/t/change-versioninfo-of-existing-dll/994/1 "2008-10-03T12:31:51Z")

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Hello,

I need to change the version info of an existing dll-file (Interop.\*.dll, automatically generated by visual studio) each time I build the project with finalbuilder.

Is there a way to do this?

Thanks

Benjamin

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### Author: ![Vincent](https://www.finalbuilder.com/forums/user_avatar/www.finalbuilder.com/vincent/32/938_2.png) [@Vincent](https://www.finalbuilder.com/forums/u/Vincent)
#### Post date: [October 7, 2008, 5:33am UTC](https://www.finalbuilder.com/forums/t/change-versioninfo-of-existing-dll/994/2 "2008-10-07T05:33:21Z")

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There is a way to do it if you use the Type Library Import action in FinalBuilder to generate the interop assembly, then you can specify the version numbers in the action. Other than that I’m not aware of a way to do it (I’m sure there is a tool out there that will do it though).