If you receive first check to make sure that you do have iTunes installed.
If iTunes is already installed on your PC, this error is usually caused by the way iTunes and other Apple software was installed in Windows and only happens to certain PC's. The issue prevents iPhones, iPads, and iPod Touches from connecting in Sharepod, but regular iPods are not affected by this issue and can still connect just fine.
Please first try running Sharepod as an administrator. Simply right-click the app from the shortcut on your Desktop and choose “Run as administrator” from the context menu. Or, if it's pinned to your taskbar, make sure it's closed, hold down Shift and right-click on the app, and select “Run as administrator” from the context menu.
If you still receive the error when running as admin, please try this:
1.) Close Sharepod.
2.) Open Windows Explorer and go to C:\Program Files (x86)\Common Files\Apple\Apple Application Support\
3.) Copy the SQLite3.dll file
4.) Paste it into C:\Program Files (x86)\Sharepod (If you get a message about the file already existing, choose to Replace)
5.) Relaunch Sharepod.
(NOTE: If you don't see (x86) after Program Files, it means you have a 32 bit PC, so just go into the "Program Files" folder instead)
If those steps don't resolve it, please try these:
1.) Close Sharepod and open Windows Explorer.
2.) Right-click on Computer in the left panel and choose Properties.
3.) Click on Advanced System Settings in the left panel.
4.) Click on Environment Variables.
5.) Look under System variables for "Path" in the Variable column.
6.) Select "Path" and click on the Edit... button.
7.) An Edit window will come up and just press the right arrow key to put your cursor at the end of the "Variable value" field.
8.) Copy/paste in these folder paths exactly after the ones already there (all separated by semicolons):
;C:\Program Files (x86)\Common Files\Apple\Apple Application Support;C:\Program
Files (x86)\Common Files\Apple\CoreFP;C:\Program Files (x86)\Common Files\Apple\Mobile Device Support;
9.) Click on OK and close those windows.
10.) Open Sharepod and connect your device.
If you still get the error, please try following steps 1-10 again, but this time, delete everything in the "Variable value" field in step 7 and just paste in the folder paths from step 8 so that the field only has those folder paths. If you still get the error after that, please restart your computer and check Sharepod again.
If you still receive the error after trying everything above, I would recommend trying Sharepod on a different computer if you have access to one since the issue only affects certain PC's.