[quote="NineRays"]Probably you need to upgrade MSI installer component ot correctly remove FlyGrid from your machine.
I ran msiexec from the command line with logging enabled. Here is the section of the log which contains information about the error:
MSI (s) (14:B8) [15:35:12:151]: Executing op: ActionStart(Name=_522383F3_9E7E_4159_8A75_FE5DC007610A,,)
MSI (s) (14:B8) [15:35:12:151]: Executing op: CustomActionSchedule(Action=_522383F3_9E7E_4159_8A75_FE5DC007610A,ActionType=1042,Source=C:\\Bin\\FlyGridInstaller.exe,Target=U,)
MSI (s) (14:B8) [15:35:18:438]: Note: 1: 1721 2: _522383F3_9E7E_4159_8A75_FE5DC007610A 3: C:\\Bin\\FlyGridInstaller.exe 4: U
MSI (s) (14:B8) [15:35:18:438]: Note: 1: 2262 2: Error 3: -2147287038
MSI (s) (14:B8) [15:35:23:477]: Note: 1: 2262 2: Error 3: -2147287038
MSI (s) (14:B8) [15:35:23:477]: Product: FlyGrid.Net Pro -- Error 1721. There is a problem with this Windows Installer package. A program required for this install to complete could not be run. Contact your support personnel or package vendor. Action: _522383F3_9E7E_4159_8A75_FE5DC007610A, location: C:\\Bin\\FlyGridInstaller.exe, command: U
MSI (c) (F4:F8) [15:35:18:453]: Font created. Charset: Req=0, Ret=0, Font: Req=MS Shell Dlg, Ret=MS Shell Dlg
Error 1721. There is a problem with this Windows Installer package. A program required for this install to complete could not be run. Contact your support personnel or package vendor. Action: _522383F3_9E7E_4159_8A75_FE5DC007610A, location: C:\\Bin\\FlyGridInstaller.exe, command: U
MSI (s) (14:B8) [15:35:23:492]: User policy value 'DisableRollback' is 0
MSI (s) (14:B8) [15:35:23:492]: Machine policy value 'DisableRollback' is 0
Action ended 15:35:23: InstallFinalize. Return value 3.