Adding Gacutil /if to Post Build yields Exit Code 9009

I have a class library which I would like to have automatically added to my gac after the build.  When I place the command Gacutil /if $(targetPath) into the post build command line, I get a 9009 exit code.

I also tried explicitly stating the location of the DLL to make sure it wasn't an issue with the environment variable.

Additionally I would like to have it write out a SafeControl to a web config file but that may be beyond the scope of this utility library as it is not a web part per se.
Howard BashSenior Software EngineerAsked:
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Howard BashSenior Software EngineerAuthor Commented:
Ok.  So while waiting for an answer to this, I found it.  All you need do is the following in your post build command:

call "$(DevEnvDir)..\Tools\vsvars32.bat"
Gacutil /if $(TargetPath)

And all is well.

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Howard BashSenior Software EngineerAuthor Commented:
Found it by hunting around on Bing and Google.
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