Once we create an UDL File and run it on 64 Bit OS, it will list down all the 64 bit OLE DB providers installed on the machine. Ham Iv Rotator Manual. The reason behind for this is simple.

A 64-bit application can use the 64-bit version of rundll32.exe located in%WinDir% System32 to load 64-bit DLL. But 32-bit programs addressing%WinDir% System32 are redirected into%WinDir% SysWOW64 for compatibility purposes and therefore they will use the 32-bit version of rundll32.exe. Hello, Yesterday I noticed how rundll32.exe was running on Windows 7 (64 bit ultimate edition) while firewall was down (I stopped firewall myself. DLL Tool fixes rundll32.exe missing or not found. (Rundll32) The file rundll32.exe is used to execute service Windows. Windows 8/7/Vista/XP, 32- & 64-bit.

When you double click on a UDL file on a 64 bit machine, it’ll enumerate only the 64 bit OLE DB Providers and if we have the 32 bit Ole DB providers installed, we will not be able to find that in the enumerated list. Create a udl file with the name test.udl under the path, C:. When we have created a UDL file on a 64 bit machine and try to open it, the following 'C: Program Files Common Files System Ole DB oledb32.dll',OpenDSLFile C: test.udl Command will be called through C: windows system32 rundll32.exe. Here both Oledb32.dll and rundll32.exe are 64 bit and will not enumerate the 32bit Dlls. Then how to run the UDL which lists down the 32bit Dlls? We can find the 32bit version of Oledb32.dll under the path: C: Program Files (x86) Common Files System Ole DB and 32 bit version of rundll32.exe under the path: C: WINDOWS SysWOW64.