Recently, I was installing the Dynamics CRM 4.0 Outlook client on a test server. After selecting the install directory, I received an error message saying “The path is not of a legal form”.

This path is not of a legal form
However, the specified folder was “C:\Program Files\CRM Client” and it was present on the C drive. After a few searches on the Web, I found someone having a similar issue while installing the CRM Data Migration Manager.Their solution was to update manually the registry.
Key: [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\
Installer\UserData\S-1-5-18\Products\59DD8CB00184F24E99A62CF4D6109FA\InstallProperties]
Name: InstallLocation
Set the Data value to “C:\Program Files\Microsoft Dynamics CRM”

After this modification, setup continued without an error (this was empty on my installation).
January 30, 2009 at 10:08 pm
[...] look here: “The path is not of a legal form” while installing the Dynamics CRM Outlook client http://usingdynamicscrm.wordpress.co…utlook-client/ Cheers Arne « CRMApplPool is not created | – [...]
April 15, 2009 at 3:41 am
It works! Thanks!
April 19, 2009 at 5:33 pm
On My server the installation key of Microsoft Dynamics CRM Server is:
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\43689CC1EAEE14C458FDAD0580BC0C97\InstallProperties]
Setting the value [InstallLocation] to “C:\Program Files\Microsoft Dynamics CRM” the setup continued.
Thanks!
June 4, 2009 at 7:53 am
In my case – key name was:
059DD8CB00184F24E99A62CF4D6109FA
Differs from topic with leading zero
June 8, 2009 at 2:12 am
Thanks, It worked great…
November 13, 2009 at 4:41 pm
Thanks for the post, you saved a server from flying out the window! LOL
Cheers
December 10, 2009 at 12:58 pm
Thanks for the post- this worked perfectly!
October 21, 2010 at 8:45 am
hey!
got the same problem installing Dynamics CRM Data Migration Wizard.
this worked like a charm! you made my day. thanks!
PP
November 16, 2010 at 7:27 pm
On my server the key name was:
C5D06E9536719E94DB7D0491EB205E22
This is on a Windows 2008 x64 server with CRM 4.0 x64.
February 9, 2011 at 7:41 am
GUID differes from installation to installation. You should search DisplayName=Server Microsoft Dynamics CRM, it is the correct key.
Thanks for help, it saved my nervers.
February 9, 2011 at 1:32 pm
Thanks for the post. It worked!!! Cheers.
April 5, 2011 at 3:27 pm
Perfect, Works !!