Need MAS90 remote Access in 2020

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Hello,

I'm not familiar with MAS90 but  my company is very small and working on an old version of MAS90 for Windows. Is there a way to remote access from a laptop at home? A previous employee was able to dial in several years ago, but we don't use dial up anymore so looking for help with this. Any info in laymans terms? With a child going to virtual learning, I will need to access billing and customer maintenance functions from home. We are looking to upgrade to the newest version of Sage, but unfortunately, it didn't come soon enough with this pandemic.