MarkusLatz wrote: You can try to write a little VBA (i.e. office or something else you have) and test the WIN API function. Declare Function DeletePrinterDriver Lib "winspool.drv" Alias "DeletePrinterDriverA" (ByVal pName As String, ByVal pEnvironment As String, ByVal pDriverName As String) As Long There you can check if it in principle work for your case. regards Markus Hi Markus, I'm also having problems with OpenPrinter, could you give me some pointer is what the VBS would look like to check I get a return value for this? ... View more

MichaelU wrote: See the help topic Exception Handling, and on the Err Object. When you catch an exception, you can examine the properties on the Err object for possible additional information. Thanks for that it's not too helpful though, no matter what I change I get the same error, I also get the same with OpenPrinter Call as well; prototype BOOL SETUPAPI.DeletePrinterDriverW(c WPOINTER, //_In_ LPTSTR pName, WPOINTER,//_In_ LPTSTR pEnvironment, WSTRING //_In_ LPTSTR pDriverName ); prototype BOOL SETUPAPI.OpenPrinterW( WSTRING, //_In_ LPTSTR pPrinterName, NUMBER,//_Out_ LPHANDLE phPrinter, WPOINTER//_In_ LPPRINTER_DEFAULTS pDefault ); c try OpenPrinterW(szDriverName, Printer, NULL); catch Err = GetLastError(); SprintfBox (INFORMATION, "L862Error","Error occured: %i\n\n%s\n\n%s", Err.Number, Err.Description, Err.LastDllError); endcatch; MessageBox("Open Printer - Complete", WARNING); MessageBox("DeletePrinterDriverW - Starting", WARNING); try if( DeletePrinterDriverW(NULL,NULL,szDriverName) = 0 ) then MessageBox(FormatMessage(Err.LastDllError), WARNING); Err = GetLastError(); SprintfBox( INFORMATION, "CustomAction: RegisterDriverINF", "DeletePrinterDriverA Failed: %s",Err); endif; catch SprintfBox (INFORMATION, "Error","Error occured: %i\n\n%s\n\n%s", Err.Number, Err.Description, Err.LastDllError); endcatch; I always get a -2147219709 error so unable to run any of these functions, its especially weird as I can run the following two API's ok prototype BOOL SETUPAPI.SetupCopyOEMInfA( // ASCII Version From SetupAPI.h POINTER, //IN PCSTR SourceInfFileName, POINTER, //IN PCSTR OEMSourceMediaLocation, OPTIONAL POINTER, //IN DWORD OEMSourceMediaType, POINTER, //IN DWORD CopyStyle, BYREF STRING, //OUT PSTR DestinationInfFileName, OPTIONAL POINTER, //IN DWORD DestinationInfFileNameSize, Set MAX_PATH POINTER, //OUT PDWORD RequiredSize, OPTIONAL POINTER //OUT PSTR *DestinationInfFileNameComponent OPTIONAL ); //MSDN api to remove infe file from Magu to /inf and file repo prototype BOOL SETUPAPI.SetupUninstallOEMInfA( POINTER, // PCWSTR InfFileName, NUMBER, // _In_ DWORD Flags, POINTER //_In_ PVOID Reserved ); And yes I've tried OpenPrinterA and DeletePrinterDriverA in teh same format as the OEMSetups, same error. V.Strange!! Any Idea's? ... View more

MichaelU wrote: Since InstallShield 2011 or so, we will default to using Unicode entry points when available. Because of this, you should either specify DeletePrinterDriverA, or use WSTRING and/or WPOINTER types to correspond to LPTSTR / LPCTSTR (or of course LPWSTR / LPCWSTR) parameters. I would start with that, and if that doesn't help, also consider seeing if you can get further information with a try/catch block. How would I execute a try and catch block as none of the suggestions you've offered here seem to work? ... View more

MichaelU wrote: Create a Control Event named like [PROPERTY] - that is with square brackets around the name of the property you want to set. You can see an example on the Next button of the CustomSetup dialog. Many thanks, is the mouseover image show/hide possible? ... View more

MichaelU wrote: It looks like you have a slight misunderstanding about the InstallScript programming language. The error you received indicates that it's treating printui as the name of a variable. If you want to treat it as (part of) the name of a file, it must be turned into a string by putting it in quotes. So instead of printui.dll your code should have "printui.dll". But since that's just part of the overall arguments to the program, you'll really need "printui.dll,PrintUIEntry /if /b \"Printer 1\" /f \"c:\\windows\\inf\\oem12.inf\" /r \"Lpt1:\" /m \"Printer 1\" /z /u" instead (note the embedded quotes that are escaped by backslashes). Note that I haven't verified the command itself; I've just tried to convert what you posted into something that the InstallScript compiler will understand. If I wanted to place a string variable as a replacement to c:\\windows\\inf\\oem12.inf would I put in in ' ' i.e. '\szDestinationInfFileName' as I can't get the compiler to like any combination tried double quotes, &&.? ... View more