Hi,

Recently I have experienced a problem with Visual Studio .NET Setup
Projects: When you execute a setup created by a Visual Studio .NET Setup
Project to upgrade an application and the setup includes a custom install
action, the installer doesn't execute the custom install action of the new
version but the one of the previous version, which is being replaced.

Researching this issue in Google I have found some references from other
users experiencing the same problem:

http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&c2coff=1&threadm=OO5Q8Z79CHA.
2920%40TK2MSFTNGP11.phx.gbl&rnum=3&prev=/groups%3Fhl%3Den%26lr%3D%26ie%3DUTF-8%2
6c2coff%3D1%26q%3Dmicrosoft.public%2Bmsi%2Bcustom%2Bactions%2Bprevious%2Bversion

http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&c2coff=1&threadm=30a27a98.031
1041629.38c873e1%40posting.google.com&rnum=5&prev=/groups%3Fhl%3Den%26lr%3D%26ie
%3DUTF-8%26c2coff%3D1%26q%3Dmicrosoft.public%2Bmsi%2Bcustom%2Bactions%2Bprevious
%2Bversion

http://groups.google.com/groups?q=BUG:+Managed+Installer+class+Upgrade+problem&h
l=es&lr=&ie=UTF-8&c2coff=1&selm=%23x%23qmU%23YCHA.1788%40tkmsftngp12&rnum=1

So, I have just written a MSDN Knowledge Base Community Solutions article
which describes the problem with a step by step to reproduce it:

BUG: Visual Studio .NET Setup Projects Execute Custom Action of Previous
Version when Upgrading:
http://support.microsoft.com/default.aspx?scid=kb;en-us;555184

I would like someone from Microsoft to take a look at it and also I would
like to find a workaround.

Thanks in advance,

Carlos J. Quintero (Visual Developer - .NET MVP)