https://www.infopathdev.com:443/forums/45.aspxenCommunityServer 2007 SP3 (Build: 31118.962)https://www.infopathdev.com:443/forums/thread/101778.aspxThu, 19 Mar 2015 06:43:11 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:101778umashiva0https://www.infopathdev.com:443/forums/thread/101778.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=45&PostID=101778Hi Guys, you found solution on the subjected issue. If so, please help on that. Thankshttps://www.infopathdev.com:443/forums/thread/45230.aspxFri, 31 Jul 2009 06:47:45 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:45230danirrivas0https://www.infopathdev.com:443/forums/thread/45230.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=45&PostID=45230<p>Hello Kalyan,</p> <p>As far as I know there is no way to work around that restriction for the browser enabled forms. You simply can&#39;t add the System.Windows.Forms.dll. I had the same problem as you and the only solution I could think of was to add a hidden section in the form and show it when required.</p> <p>If somebody else knows a better way of solving this, please, don&#39;t be shy :-)</p> <p>Hugs,</p> <p>Daniel Rivas.</p>https://www.infopathdev.com:443/forums/thread/45217.aspxThu, 30 Jul 2009 19:40:21 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:45217kalyan@infopath0https://www.infopathdev.com:443/forums/thread/45217.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=45&PostID=45217Hi, There is a requirement where I need to show a message box in browser enabled InfoPath form when a button is clicked and I need to do it programatically with out using any rules. I tried with MessageBox.show() by adding System.Windows.Forms.dll, but of no use when I tried to upload this form to Central Administration. It is throwing me the following error: &quot;User Interface operations are not supported. Please try removing System.Windows.Forms.dll&quot; . Is there any way that I can code it programatically?? Thanks in advance..