http://blogs.technet.com/alexshev/archive/2008/03/25/property-does-not-exist-or-empty-when-accessed-from-deferred-custom-action.aspx
-----Original Message----- From: Sanjay Rao [mailto:s...@noida.interrasystems.com] Sent: Wednesday, April 07, 2010 1:29 AM To: General discussion for Windows Installer XML toolset. Subject: [WiX-users] File copying issue Hi, I have a installer, which needs to do following steps - 1. Detect an already installed version. 2. if it exists, stop services. 3. install new files. 4. copy a file created by older version software into new directory. 5. start services. For step4 I defined a custom action in C++ dll as follows - <CustomAction Id='CopyFileDatabaseCA' BinaryKey='IPValidationdll' DllEntry='copyFileDB' Execute='deferred' Impersonate='no' Return = 'check'/> *C++ function defined as follows - * __declspec(dllexport) UINT __stdcall copyFileDB(MSIHANDLE hInstall) { try { char oldBatonSysDrive[MAX_PATH]; DWORD oldValueLen = MAX_PATH; UINT uiResult = MsiGetProperty (hInstall, "OLDBATONSYSDRIVE", oldBatonSysDrive, &oldValueLen); char cNewPath[MAX_PATH]; DWORD newPathLen = MAX_PATH; MsiGetProperty (hInstall, "BATONSYSDRIVE", cNewPath, &newPathLen); MessageBox(NULL, oldBatonSysDrive, "Baton Install", MB_OK); if( oldValueLen > 0) { //some code to copy file } return ERROR_SUCCESS; } catch(...) { return ERROR_SUCCESS; } } line highlighted in red is not able to pick the value of property, whilw other custom actions are able to find this value. if remove Execute=deffered from this custom action then this custom action is also able to pick value. Regards, Sanjay Rao ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users
