Following are my requirements a) I need to check the .Net 3.5 prerequisites and if it is not present, must install the .net component followed by the instllation of my application which includes copying the files to Programs files. Can any one suggest is there any way to the do the same in Wix without using Burn(Bootstrapper)? I need MSI as the starting point rather than a exe file. ( that is the reason why i dont prefer bootstrapper along with limitation that we cannot create Wix Burn without UI) I have tried out writing a custom actionn in C++ which will lauch dotnet installer - But it is not working since we have multiple installers running at the same time - (My main installer and the dotnet installer) Any suggestions are welcome. If it is not possible in Wix, can any one suggestion some other technologies through which we can solve the problem. Kindly note that we need to handle two installers in my problem - the application installer and dotnet installer. Ashish ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. This 200-page book is written by three acclaimed leaders in the field. The early access version is available now. Download your free book today! http://p.sf.net/sfu/neotech_d2d_may _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users