Creating Alias drive letter in windows

This post is regarding creating drive letter alias instead of changing drive letter.

Hi All,

Scenario:
One of our client has migrated their IIS site from old server to new server, in their existing code they were having some  references set to D: . However on new server there was only one drive C: was available. 

Requirement:
Our client requested us to change the drive letter of server`s C: to D: .

Limitation / Risk:

C: is a System drive and holds critical system data and its references. Therefor directly changing its drive letter to D: could cause sever issues.we can try with the below option of creating alias letter for it.

Solution:
Therefor instead of directly changing its drive letter to D: we tried below trick which did the job for us.

Using this option, we can simply create an Alias D: drive which will be pointing to C: Drive, From IIS point of view IIS will be serving all the contents from D: virtually which Physically pointing to and coming from C:

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The command which we have used in elevated CMD windows

subst D: C:\  (This command will create Virtual Drive D: pointing to C:\ )


Note: Drive letter can be assigned to any folder path also just replace the C:\ path with the required folder.

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Kindly Share your experience in comment section with my blog/post if it did help you !!

Stay Blessed!!  
Thank You!!