Depending on the file in question

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case Msflxgrd.ocx
1. Download Msflxgrd.ocx (right click the text on the left and save to your Desktop).

2. Back up your current copy of Msflxgrd.ocx when you have it and copy the new version
to the same file location. The file should be located in the WINDOWS\SYSTEM directory
on your system drive, most of the time this is C:
For Windows NT and 2000 this should be: \WINNT\system32.

3. Using your mouse, click on the "Start" button and then click on "Run".
Run is not always visible on the start menu. Consult windows help to correct this.

4. According to your Operating System, type the following command to register this
library file:

      Windows 95, 98, or Me:
      regsvr32 \windows\system\Msflxgrd.ocx

      Windows NT or 2000:
      regsvr32 \WINNT\system32\Msflxgrd.ocx

      Windows XP:
      regsvr32 \windows\system32\Msflxgrd.ocx


5. You should see a message saying "DllRegisterServer ... succeeded" 

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case COMDLG32.OCX
1. Download Msflxgrd.ocx (right click the text on the left and save to your Desktop).

2. Back up your current copy of Msflxgrd.ocx when you have it and copy the new version
to the same file location. The file should be located in the WINDOWS\SYSTEM directory
on your system drive, most of the time this is C:
For Windows NT and 2000 this should be: \WINNT\system32.

3. Using your mouse, click on the "Start" button and then click on "Run".
Run is not always visible on the start menu. Consult windows help to correct this.

4. According to your Operating System, type the following command to register this
library file:

      Windows 95, 98, or Me:
      regsvr32 \windows\system\COMDLG32.OCX

      Windows NT or 2000:
      regsvr32 \WINNT\system32\COMDLG32.OCX

      Windows XP:
      regsvr32 \windows\system32\COMDLG32.OCX

5. You should see a message saying "DllRegisterServer ... succeeded"