If you do not see a Rheingold folder, a .7z archive, or an executable file, then you have not downloaded the ISTA program yet. You likely only downloaded the Data files (SDP or BLP), or the download was incomplete.
Please check the filenames of the files you actually downloaded.
A complete Standalone package usually consists of:
1. Program File: Often named ISTA_v4.57.30.7z or Standalone_4.57.30.rar. (This contains the Rheingold folder).
2. Data Files:BLP_4.57.30.7z and SDP_4.57.30.7z.
If you only see files like:
psdzdata
data
SDP
BLP
FASTA
Then you have only downloaded the database files. You are missing the main software.
Solution:
Go back to the download source (the first post). You need to find the link specifically labeled "Program", "Standalone", or "ISTA+ Application". It is usually the smallest of the large files (around 15GB-20GB uncompressed, or smaller if compressed).
Once you download and extract *that* specific file, the Rheingold folder will appear.
You can usually find older versions like 4.32.15 (which is the most popular older release) in the same repository as the current download.
1. Check the Main Link: Open the MEGA or Google Drive link from the first post again. Look for a folder named Old Versions, Archive, or Previous Releases.
2. Search the Forum: If it is not in the main link, use the forum search bar for "ISTA 4.32.15". This specific version is very common because it was the last version to use a simple .exe installer instead of the current copy-paste method.
Why choose 4.32?
It is much easier to install and supports older laptops (Windows 7/8) better than the 4.5x versions. If you are struggling with the manual file placement of 4.57, finding a 4.32 installer is a good solution.
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