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Msn Errors

Windows Live Messenger Installation Error 1601, Error 1603 and Error 1635

After you upgrade to Windows Installer version 2.0, the Windows Installer Service may not start, and you may receive the following error message:
The Windows Installer Service could not be accessed. This can occur if you are running Windows in safe mode, or the Windows Installer is not correctly installed. Contact your support personnel for assistance.

This behavior can occur when either of the following conditions exist:
• In the DCOM permissions, the default authentication level is set to None, and the default Impersonation level is set to Anonymous.
• The system account does not have Full permissions on a folder or registry key that the Windows Installer is trying to access. This is NTFS-specific.

Method 1: Unregister and re-register the Windows Installer
1. Click Start, click Run, type MSIEXEC /UNREGISTER, and then click OK. Even if you do this correctly, it may look like nothing occurs.
2. Click Start, click Run, type MSIEXEC /REGSERVER, and then click OK. Even if you do this correctly, it may look like nothing occurs, or you may briefly see an hourglass. After you run this command, the operation is complete.
3. Try your Windows Installer-based application again.
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Method 2: Verify the DCOM permissions
This method involves changing the DCOM default impersonation level to Identify, removing the Msisip.dll file, and then reinstalling SP 3 for Windows 2000.

To do this, follow these steps:
1. Click Start, click Run, type dcomcnfg, and then click OK.
2. On the Default Properties tab:
a. In the Default Authentication Level list, click Connect.
b. In the Default Impersonation Level list, click Identify, and then click OK.
3. Click Start, click Run, type explorer /select, %windir%\system32\msisip.dll, and then click OK.
4. Rename the Msisip.dll file as Msisip.old.
5. Reinstall Windows 2000 Service Pack 3.
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Method 3: Give Full Control permission to the SYSTEM account
1. Start Windows Explorer, right-click the computer's root hard drive, and then click Properties.
2. Click the Security tab, and then click Add.
3. In the Select Users, Computers, or Groups dialog box, click the SYSTEM account, click Add, and then click OK.
4. Under Allow, click to select the Full Control check box, and then click OK.
5. Click the TEMP folder and then verify that the SYSTEM account has full control.
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Method 4: Verify the registry permissions
1. Click Start, click Run, then type Regedt32.
2. For each of the registry hives, follow these steps:
a. Select the hive.
b. For Windows XP, on the Edit menu, click Permissions.

For Windows 2000 and Windows NT 4, on the Security menu, click Permissions.
3. Verify that the SYSTEM account has been added and that it has Full control. If it does not, add the SYSTEM account with Full control.
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Method 5: Fix the broken security key for the MsiServer service
1. Start the computer by using Windows 2000.
2. Click Start, click Run, type regedit.exe, and then rename the following key to Old_Security:
3. Restart the computer (you must do this).
4. Run Instmsiw.exe for installer 2.0 again; this corrects the broken security key for the MSI service.


Bimbiano said...

Method 4 works for me!

inlinex said...

exellent it works with the method one.... before that i run again my setup and runs perfect 10x

Tim said...

method one worked...thank you so much!!!

Crystine of Cybertron said...

Method 1 worked for me. Thank you.

Anonymous said...

thank man i wasnt to sure about trying this method out but it works!! thanks

free ps3 said...

Till now, I can't find any MSN error!

Anonymous said...

Method one worked for me :)

Thanks so much!

Anonymous said...

none worked

Warioblast said...

Thx so much !!!!!!!!!!
Method 3 worked for me.
Windows 2000 SP4

Ben said...

I had this same error when i went to install Windows Live Messenger 8.5 i got error 1603.
I found out that i had previously uninstalled windows live messenger without uninstalling the add-on program called Msg Plus Live. I uninstalled Msg Plus Live and it worked fine.
Hope this helps.

Will-Will said...

Thankyou, thankyou, thankyou! My Hero! I've had this error for a while now, and stumbled across your page. Method 1 worked like a charm for me!

Nice of you to post this/these! Cheers!

Edison said...

i faced the msn problem during installing, it shown "Error writing to file: C:\ProgramFiles\MSN Messenger\msnmsgr.exe.Verify that you have access to that directory."
I have clicked retry and unable to continue. I have checked the properties on drive C and it is normal. I also tried with Administrator and same behaviour. Please someone help me on that.

Kelli said...

Great work.

Anonymous said...


Jason Li said...

YEP brilliant. method 1 worked before i've finished digesting or even reading your post!!

Anonymous said...

Brilliant, it works. Thanks a mil.

Anonymous said...

This 70 year old had endless trouble installing Live M. Couldn't get rid of the old Live M programme so used "ZapMessenger" which worked fine and I then successfully installed the new Live M. Off Prozac now.

Isaiah said...

I tried method one, but that didn't work. My error says that it's not working because Microsoft Error Reporting Application wasn't able to install with it. I was wondering if anyone knew how to fix that? Anyone? :(

jet said...

i have tried all of the suggestions plus zap messenger to no avail. i am ready to punt my whole laptop out of the window. any assistance anyone can provide would be most appreciated. i am receiving error 0x80070641 telling me that installer is broken. managed to install sp2 for vista but cannot update messenger and therefore cannot use.

jet said...

i have tried all options with no avail. ready to punt my laptop out of the window!
successfully finally installed SP2 for Vista but Messenger just will not update no matter what i do, including utilising zapmessenger program, cleaning the registry, etc etc.
i am receiving error 0x80070641 telling me that windows installer is busted.
any help anyone can provide would be great! Many Thanks, Julie

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