I have OOo 3.2 on Ubuntu 10.04 LTS. It's official build. Problem occurs, if bootrap() is called two times during execution of code. I can reproduce issue on my computer, if I'm modifying your code (last two lines): using ( SpreadsheetSample aSample = new SpreadsheetSample( args ) ) { aSample.doSampleFunctions(); } Console.WriteLine( "\nSamples done." ); unoidl.com.sun.star.uno.XComponentContext context = uno.util.Bootstrap.bootstrap(); Console.WriteLine(context.ToString()); <div class="gmail_quote">2010/7/27 Petr Mladek <<a href="mailto:pmladek@suse.cz">pmladek@suse.cz</a>> <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Hi Jānis, Jānis Upītis píše v Út 27. 07. 2010 v 11:28 +0300: <div class="im">> Hi, > > I'm trying to use Open Office from my C#/Mono application. I can get > XComponentContext, using uno.util.Bootstrap.bootstrap(), when calling > it > first time, but application crashes, if I'm trying to do it second > time > (gots SIGSEGV somewhere in native code). Is there any problem in my > code. Open Office API documentation doesn't contain any clue about > need > of any preparation for second call (for example, release of some > resources). Of course, it doesn't make sens to call bootstrap() two > times in row, but it can be necessary, if i want interact with Open > Office in different parts of my application, but I guess SIGSEGV is > not > appropriate result anyway. </div>What OOo version are you using? Is it your own build or an official build? Is the build based on ooo-build or on the pure upstream sources? The attached example works for me with the openSUSE OOo-3.2.1 build based on ooo-build-3.2.1.4.tar.gz. I just do: tar -xjf ooo-mono-test-3.x.tar.bz2 cd ooo-mono-test-3.x make Unfortunately, I do not have experiences with writing mono stuff for OOo. I am not sure what is the problem on your side. Anyway, you could hopefully take inspiration from the sample. Hmm, the sample does not work with the last build based on ooo-build master; though, it is in 3.3-alpha state, so bugs are expected. -- Best Regards, Petr Mladek software developer --------------------------------------------------------------------- SUSE LINUX, s. r. o. e-mail: <a href="mailto:pmladek@suse.cz">pmladek@suse.cz</a> Lihovarská 1060/12 tel: +420 284 028 952 190 00 Prague 9 fax: +420 284 028 951 Czech Republic <a href="http://www.suse.cz/" target="_blank">http://www.suse.cz/</a> </blockquote></div>