Is it safe to install mySQL on Windows Server 2003 when MS SQL 2005 Express already exists?

Question

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I should note that I need to do this on a real production server. MS SQL Server is already connected to our website and supports a third-party ERP package. I want to create a separate database with which I can copy some auxiliary pages and applications for internal use), which will be completely independent (mainly for security, but also because I prefer mySQL) from the ERP solution.
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MS SQL 2005 express db is already installed and used, so I do not want its hoses.

Will this create problems or have you done it successfully?

Answer 1

For a development machine, it is safe. Two database servers are listening on different ports, so there is no problem starting both at the same time.

I would not recommend it, though for a production system.

Answer 2

Aside from performance issues, assuming they are both used constantly, there should be no problems.

Answer 3

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