Problem Uninstalling Windows XP Professional

[Chintam]

I recently thought of installing windows vista 64 bit operating system. The problem starts here. I tried removing windows components in windows XP proffesional sp3, I was prompted with a message saying that:

"Setup library msgrocm.dll is not able to load, or function OcEntry cannot be found." I found them on my HDD, but dont know why it wont load.

Please suggest some views regarding this

Your views will be appreciated

[Devasis]

Same problem here, but I was able to get farther by using SFC to replace missing files. However, once I was able to select optional windows components I always have to direct the browser to the correct file, which ignores the file and asks for the "service pack 3" disk. Fix anytime soon? My UPnP services aren't working.

I did a search and there are three ntoc.dll files and the one in in \Windows\system32\setup is version 3264 which matches the SP3 version number.

I tried add/remove windows components again and it was fine

[Solomon]

1. Click Start, right-click My Computer, and then click Properties.
2. Click the Advanced tab, and then click Environment Variables.
3. Click Path in the System variables list, and then click Edit.
4. Replace three of the paths in the Variable value box. To do this, follow these steps: Delete the following three paths in the Variable value box:
5. %SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem
6. Type the following text in the Variable value box to replace the paths that you removed in step 4a.
7. drive:\Windows\System32;C:\Windows;C:\Windows\System32\Wbem
8. Note drive is the hard disk drive where Windows is installed, and Windows is the folder in which Windows is installed.
9. Click OK three times.

[MrChris-]

• Click Start, click Run, type regedit, and then click OK.
• Locate and then click the following registry subkey:
• HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment
• Make sure that the type of the Path registry entry is REG_EXPAND_SZ.
  
• Note If the type is not REG_EXPAND_SZ, delete the Path registry entry, and then re-create a Path registry entry that has the REG_EXPAND_SZ type.
• Right-click the Path registry entry, and then click Modify.
• Type the following path in the Value data box:
• %SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem

[Calvin K]

Method 1

The DllCache folder maintains a copy of comsetup.dll file. So, you can copy the file to the following location:

C:\Windows\System32\setup

Note that the DLLCache folder is located at:

C:\Windows\system32\dllcache

Method 2 - Extract comsetup.dll from Windows XP CD

Insert the Windows XP CD in the drive.
Click Start, Run and type CMD
In the Command Prompt, type the following command:

expand X:\i386\comsetup.dl_ -r c:\windows\system\setup

Where X:\ is your CD-ROM drive letter. The above command assumes Windows is installed in C:\ drive. If not, change the drive letter accordingly.